What tier is Defender Cassiopeia Reroll on TFT Set 18?

Defender Cassiopeia Reroll is currently Tier A on TFT Set 18, with a 4.44 average placement and 51% top 4 rate over 766 real ranked games analyzed.

TFT Set 18

Defender Cassiopeia Reroll= 0.13

Level 7

Sample confidence: Medium (766 games). See how this is calculated →

Placement

4.44

Top 4

51%

Contest.

Full composition

Game Plan

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

Se poser au niveau 7 pour rerolls Cassiopeia

Niveau qui minimise l'or nécessaire pour 3-coût(s) en même temps. Compter environ 116-188 or pour une chance de 25% à 75% d'obtenir toutes les copies visées (médiane ~152 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

Defender 6

Spellweaver 2/4

Rival 1/2

Flora Fatalis 1/2

Elderwood 1/3

Solar 1/3

Sprykin 1/3

Coven 1/3

Inferno 1/2

Fae 1/2

Item combos — main carries (top 10)

Cassiopeia

Combo	Avg placement
	4.14
	3.59
	4.60
	5.48
	4.30
	4.70
	4.11
	3.00
	4.54
	4.82

Seen on the TOP ladders

EUW GodL Rykomastery#GodL CHALLENGER 1397 LP 1

EUW Skipaeus#9232 CHALLENGER 1335 LP 1

EUW ViggoZe#EUW CHALLENGER 1322 LP 1

EUW shreddin#EUWU CHALLENGER 1222 LP 1

NA Luqun#NA1 CHALLENGER 707 LP 1

BR Só bio#gag CHALLENGER 1472 LP 1

NA torontokyoArkjow#NA2 CHALLENGER 613 LP 2

BR GVidigal#br1 CHALLENGER 556 LP 2

BR caoMei#2942 CHALLENGER 547 LP 2

BR GuiGuilson#eevee GRANDMASTER 255 LP 2

KR 난 슬플때 풀캠을 돌아#매일매일 CHALLENGER 1003 LP 2

EUW Hmoon#buh CHALLENGER 1328 LP 3

EUW PMK PainGetsReal#PMK CHALLENGER 980 LP 3

BR NÃO PIVOTO#TFT CHALLENGER 615 LP 3

BR monster flames#BR1 GRANDMASTER 446 LP 3

EUW IZI Lyyyress#EUW CHALLENGER 1210 LP 4

EUW Rubic#1453 CHALLENGER 796 LP 4

EUW IgotHAXXXeuw#EUW CHALLENGER 687 LP 4

BR To de atestado#0101 CHALLENGER 711 LP 4

Matchups vs

vs Caustic Aphelios 291 encounters 49%

vs Juggernaut Zyra 204 encounters 53%

vs Caustic Nidalee 179 encounters 47%

vs FloraFatalis Azir 178 encounters 57%

vs Riftbeast Pebbles 133 encounters 35%

vs Elderwood Ezreal 131 encounters 38%

vs Greenfather Ezreal 122 encounters 39%

vs Emerald Ahri 117 encounters 46%

vs Summoner Zyra 116 encounters 59%

vs Invoker Morgana 109 encounters 64%

vs Greenfather Amumu 106 encounters 39%

vs Emerald Morgana 106 encounters 42%

vs Invoker Ahri 89 encounters 63%

vs FloraFatalis Kha'Zix 83 encounters 57%

vs Riftbeast Cinderling 82 encounters 43%

vs Greenfather Sentinel 77 encounters 40%

vs Executioner Ezreal 75 encounters 43%

vs Rapidfire Aphelios 73 encounters 48%

vs Juggernaut Sivir 72 encounters 54%

vs Summoner Soraka 70 encounters 67%

Board variants

Baseline

5.67 avg placement

→

5.36 avg placement

→

5.33 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 Not enough games with exactly this board, no add-ons

Not enough games with an extra unit for a reliable signal.

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.