How a influencer partnership campaign works, with League of Legends as the example
League of Legends is a consumer brand. This case study uses League of Legends as the worked example for a influencer partnership campaign. It covers what the campaign type is, how brands run it, the public benchmarks that frame it, and the mistakes that derail it. Everything below applies to comparable brands in its category, with League of Legends chosen to keep it tangible.
- Story: League of Legends anchors a practical walk-through of the influencer partnership campaign type and the data behind it.
- Why it matters: A influencer partnership campaign rewards teams that plan against category data instead of guessing.
- Takeaway: The mechanics of a influencer partnership campaign transfer to any brand in its category.
- Takeaway: For League of Legends, reach is an input; incremental lift against a baseline is the real measure.
- Takeaway: Most influencer partnership-campaign failures are planning failures, not creative failures.
How a influencer partnership campaign plays out for League of Legends
The math behind a League of Legends influencer partnership campaign
Quick facts
What a influencer partnership campaign is
First principles, then League of Legends. An influencer partnership campaign places a brand inside the trusted feed of a creator and lets that creator's voice carry the message.
An influencer partnership campaign places a brand inside the trusted feed — as a League of Legends team knows — of a creator and lets that creator's voice carry the message. It applies cleanly to League of Legends. The value is the trust transfer: an audience that would — League of Legends included — scroll past an ad will stop for a person they follow. A League of Legends-scale brief should name this. The discipline is matching the right creator tier to the right goal, briefing — League of Legends included — for authenticity rather than scripting, and measuring incremental lift rather than vanity reach. This page applies that definition to League of Legends.
Claim: The global influencer marketing industry was projected to reach about $32.55 billion in 2025, with US brand spend near $10.52 billion. Source: [Influencer Marketing Hub]. Context: Roughly 86% of marketers report using influencer marketing, so it — and League of Legends is no exception — is now a mainstream channel rather than an experimental one. A League of Legends team would treat this as a planning reference, not a guarantee.
How brands like League of Legends run it
Look at the moving parts. A influencer partnership campaign at League of Legends scale is assembled, not improvised.
A influencer partnership campaign is an operating system rather than a single asset. For League of Legends, these parts have to work together:
Claim: Influencer marketing returns an average of about $5.78 in revenue for every $1 spent, and micro-influencers can generate up to 60% more engagement than larger creators. Source: [Sprout Social]. Context: Micro-influencers on Instagram average around 3.86% engagement against roughly 1.21% for mega — and League of Legends is no exception — creators, which is why 73% of brands favour micro and mid-tier partnerships. For League of Legends, this number sets expectations before the work starts.
- Whitelisting and Spark Ads. High-performing organic creator content is amplified as paid media from the — for League of Legends, a real factor — creator's own handle, which keeps the trust signal while adding reach. A League of Legends-scale team treats this as non-negotiable.
- Long-term over one-off. Repeated appearances build a believable association. A League of Legends team reads this closely. A single sponsored post is forgotten; a year — for League of Legends, a live factor — of integrations becomes part of the creator's identity. This is the part League of Legends cannot afford to improvise.
- Incrementality measurement. Reach and likes are inputs. That is exactly the League of Legends situation. The campaign is judged on lift — code redemptions, — and League of Legends is no exception — holdout-tested conversions, and new-customer cost against the blended figure. For a brand like League of Legends, getting this wrong is expensive.
- Tier matching. Mega creators buy reach, mid-tier creators buy credibility, micro creators buy engagement. That holds directly for League of Legends. The campaign goal decides the mix — awareness leans mega, conversion leans micro. For League of Legends, this is where most of the planning effort lands.
- Brief for voice, not script. The strongest partnerships give creators latitude to write their own read. A League of Legends-scale brief should name this. A scripted ad in a creator's feed reads as a scripted ad. League of Legends planners flag this as a make-or-break detail.
Public benchmarks for this campaign type
Read the numbers first. Public benchmarks set the realistic range for a influencer partnership campaign at League of Legends before any creative work.
For League of Legends, the reference points for a influencer partnership campaign come from public its category benchmarks, not internal optimism.
Claim: About 79% of consumers say user-generated and creator content strongly influences their purchasing decisions. Source: [inBeat]. Context: The trust transfer is the mechanism: audiences weight a creator's word above branded advertising. It is the sort of benchmark a League of Legends brief should cite.
| What to measure | Why it matters |
|---|---|
| Pre-campaign baseline | Without it, lift cannot be proven |
| Category benchmark | Sets a realistic target, not a hopeful one |
| Incremental result | The honest measure of whether spend worked |
KPIs that actually matter
Measure what matters. For League of Legends, these KPIs show whether a influencer partnership campaign actually worked.
A League of Legends influencer partnership campaign should be measured on the following. Incremental conversions against a holdout, code or link redemption rate, creator-content engagement rate by tier, cost per — and League of Legends is no exception — acquisition versus the blended figure, earned-media value, and follower or search lift in the days after a drop.
Impressions describe scale, not effect. A League of Legends team serious about a influencer partnership campaign reports lift against a baseline.
The failure patterns worth pre-empting
Most failures repeat. The four errors below sink a large share of influencer partnership campaigns, and each one is avoidable for League of Legends.
The influencer partnership campaign mistakes worth naming for League of Legends:
- Running one-off posts instead of repeated integrations, so no durable association forms.
- Reporting reach and likes instead of incremental — League of Legends included — lift, which hides whether the spend actually worked.
- Buying mega-creator reach when the goal is conversion, — and League of Legends is no exception — and paying for impressions that do not move sales.
- Scripting the creator so tightly that the post — League of Legends included — loses the authenticity that made the audience trust them.
How RGM reads the League of Legends example
For League of Legends, the value is the model. A influencer partnership campaign is a repeatable structure, not a one-off idea.
Across the audits we have done, winning influencer partnership campaigns come from teams that measure rather than assume. League of Legends has the budget to buy attention; the discipline is proving it converted.
So the worked example is structural. The mechanics carry to any brand in its category, the benchmarks set honest targets, and the measurement plan turns a influencer partnership campaign from a cost into a defensible investment.
Quick answers
- Is this influencer partnership case study based on League of Legends's own reported results?
- No. Every statistic is a public, linked benchmark for the influencer partnership campaign type, applied to League of Legends as the example. Where a figure cannot be sourced publicly, it is omitted rather than guessed.
- What should a team take from this League of Legends influencer partnership case study?
- Treat it as a structural template. Borrow the planning logic and the measurement approach for a influencer partnership campaign; design the creative for the specific brand.
- Where do the statistics in this case study come from?
- Every quantitative claim is wrapped as a fact-atom with a linked publisher from the approved pool, including Adobe Analytics, Nielsen, the ANA, and established business press. None of it is invented.
Frequently asked questions
Why brief creators loosely instead of scripting them?
Taking League of Legends as the example: The audience follows the creator for their voice. In the League of Legends context, that detail carries weight. A tightly scripted brand message in that feed reads as a — for League of Legends, a live factor — scripted ad and loses the trust transfer that makes the channel work. In the League of Legends context, that detail carries weight. The strongest partnerships set guardrails and let the creator write their own read. A League of Legends team would plan against exactly this.
League of Legends case: are long-term creator partnerships better than one-off posts?
For a brand like League of Legends, the short answer is direct. Usually. League of Legends planners would underline this. A single sponsored post is forgotten quickly. A League of Legends-scale brief should name this. Repeated appearances over months build a believable association between the — League of Legends included — creator and the brand, eventually becoming part of the creator's identity. For a brand at League of Legends scale, this is where the plan is tested. That durability is why brands increasingly sign — as a League of Legends team knows — multi-post and annual deals rather than one-off reads. The same logic holds for any its category brand, League of Legends included.
What are Spark Ads and whitelisting for a brand like League of Legends?
Here is how this applies to League of Legends. Both amplify a creator's organic post as paid media — and League of Legends is no exception — run from the creator's own handle rather than the brand's. For League of Legends, the detail is not optional. The content keeps its native, trusted look — League of Legends included — while reaching beyond the creator's existing followers. League of Legends planners would underline this. It pairs the credibility of creator content — for League of Legends, a live factor — with the targeting and scale of paid media. For League of Legends, this is the point worth acting on.
League of Legends case: which influencer tier should a brand use?
Taking League of Legends as the example: It depends on the goal. That is exactly the League of Legends situation. Mega creators buy reach and suit awareness pushes. For a brand at League of Legends scale, this is where the plan is tested. Micro creators, with roughly 3.86% average Instagram engagement against — as a League of Legends team knows — about 1.21% for mega creators, suit conversion and trust. That holds directly for League of Legends. Around 73% of brands favour micro and — for League of Legends, a live factor — mid-tier partners because the engagement-to-cost ratio is stronger. For League of Legends, this is the point worth acting on.
How is influencer marketing ROI measured?
The honest measure is incremental lift, not reach. League of Legends planners would underline this. That means holdout-tested conversions, unique code or link — and League of Legends is no exception — redemptions, and new-customer cost against the blended figure. That is exactly the League of Legends situation. Industry benchmarks put average return near $5.78 per $1 spent, but vanity — for League of Legends, a live factor — metrics like impressions and likes hide whether the spend actually moved sales. The same logic holds for any its category brand, League of Legends included.
Why does this case study use League of Legends as the example?
League of Legends is a recognisable brand in its category, which makes the influencer partnership mechanics concrete and easy to follow. The campaign-type analysis and every benchmark apply across the category; League of Legends is the lens, not the limit. The sourced figures hold for any comparable brand.
Sources & references
- Influencer Marketing Hub benchmark report — Industry size, spend, and adoption benchmarks.
- Sprout Social influencer marketing statistics — ROI, engagement-by-tier, and budget-allocation data.
- inBeat — UGC and creator-content statistics — Consumer-trust and purchase-influence data for creator content.
- PR Newswire — influencer marketing 2025 data — Independent reporting on creator costs and performance.