What tier is Rival Master Yi Reroll on TFT Set 18?

Rival Master Yi Reroll is currently Tier C on TFT Set 18, with a 5.01 average placement and 43% top 4 rate over 154 real ranked games analyzed.

TFT Set 18

Rival Master Yi Reroll▼ 0.40

Level 7

Sample confidence: Low (154 games). See how this is calculated →

Placement

5.01

Top 4

43%

Contest.

Full composition

Game Plan

Each step's detail is currently only generated in French.

Se poser au niveau 7 pour rerolls Master Yi, Rengar

Niveau qui minimise l'or nécessaire pour 3-coût(s) en même temps. Compter environ 148-206 or pour une chance de 25% à 75% d'obtenir toutes les copies visées (médiane ~176 or).

These numbers assume a solo player with no contest from other players in the lobby. Real contest on these champions can make these estimates optimistic.

Traits

Adaptor 3/4

Blossom 3/5

Primal 2/4

Juggernaut 2/4

Brawler 2/4

Rival 1/2

Caustic 1

Invoker 1/2

Riftbeast 1/3

Summoner 1/2

Item combos — main carries (top 10)

Master Yi

Combo	Avg placement
	5.41
	4.85
	6.67
	5.00
	4.17
	5.00
	6.50
	4.33
	4.50
	1.50

Rengar

Combo	Avg placement
	4.83
	5.86
	3.50
	2.33
	4.33
	5.50
	4.00
	6.00
	4.00
	3.50

Combo	Avg placement
	4.20
	4.00
	5.33
	4.00
	6.00
	7.00
	6.50

Seen on the TOP ladders

NA shoma#INT1 CHALLENGER 701 LP 1

NA CtHin#NA1 CHALLENGER 609 LP 1

BR Lefeco#br1 CHALLENGER 741 LP 6

BR polar1zed#011 CHALLENGER 631 LP 6

BR koke#four GRANDMASTER 513 LP 6

KR Ssangyeop#1234 CHALLENGER 1352 LP 7

KR 뽀뇨뽀뇨#1218 CHALLENGER 847 LP 7

KR 오타쿠#aaa CHALLENGER 1327 LP 8

Matchups vs

vs Caustic Aphelios 67 encounters 40%

vs Juggernaut Zyra 43 encounters 35%

vs FloraFatalis Azir 33 encounters 42%

vs Riftbeast Pebbles 25 encounters 44%

vs Caustic Nidalee 23 encounters 43%

vs Emerald Morgana 22 encounters 59%

vs Riftbeast Cinderling 22 encounters 27%

vs Juggernaut Sivir 22 encounters 27%

vs Elderwood Ezreal 20 encounters 40%

vs Solar Kayle 20 encounters 60%

vs FloraFatalis Kha'Zix 19 encounters 53%

vs Greenfather Ezreal 19 encounters 26%

vs Emerald Ahri 19 encounters 16%

vs Invoker Morgana 19 encounters 47%

vs Greenfather Morgana 19 encounters 37%

vs Defender Cassiopeia 18 encounters 50%

vs Greenfather Sivir 17 encounters 41%

vs FloraFatalis Soraka 17 encounters 65%

vs Spellweaver Veigar 16 encounters 50%

vs Summoner Zyra 15 encounters 60%

Board variants

Baseline

6.31 avg placement

→

5.58 avg placement

→

3.27 avg placement

Real versions of this comp's final board: which exact group of champions shows up together, how often, and the average placement of those games. Not a game-by-game history (Riot only exposes the end-of-game board, never how it got there): a comparison of builds, not a timeline.

Board add-ons (9th/10th unit)

Base board — 8 units 3.27 avg placement · 15 games

+1 unit (9 total)

Lux 1.50 avg placement · 2 games

The main board above stops at 9 units: reaching a 10th slot needs level 10, which on its own already correlates strongly with a good placement. Below, the average placement of games with this base board plus one or two extra units, shown as a correlation to interpret, not a causal recommendation.

Augment path

Data unavailable. Riot's API doesn't populate the augments field for this set — verified directly on the collected sample (the "augments" field doesn't even appear in the response, across 23,000+ real participants checked). The field does exist in the official schema and worked on older sets, so this probably isn't permanent — this section will activate automatically as soon as it fills in again.