Patch 26.9 Data
Champion Matchups
Pick two champions and see who wins. Win rates, counters, and tips powered by live ranked data.
Champion 1
Diana
VS
Champion 2
Master Yi
vs

47.3%
Diana win rate vs Master Yi
Master Yi has the edge
757
Games Analyzed
47.3%
Diana WR
52.7%
Master Yi WR
-216
Avg Gold Diff @15
Diana
DamageAP
StyleAll-in
RangeMelee
Difficulty**---
StrongMid game
RunesConqueror / Resolve
SummsFlash + Smite
Master Yi
DamageAD
StyleSustained
RangeMelee
Difficulty**---
StrongLate game
RunesLethal Tempo / Resolve
SummsFlash + Smite
Power Spike Timeline
Diana
Level 6
Master Yi
Level 6
Diana
1 item
Diana
2 items
Master Yi
2 items
Master Yi
3 items
How to Play This Matchup
Power Curve
Diana is strongest mid game while Master Yi peaks late game. Play around your power window.
Mixed Resistances
Diana deals AP damage while Master Yi deals AD. Build resistances accordingly  don't stack the wrong type.
Exploit Diana's Weakness
Diana's main weakness: Pre-6 weak, kiting, CC before R. Play around this to maximize your advantage.
Diana Win Condition
R into grouped enemies for massive AoE, dive backline
Master Yi Win Condition
Scale, Q resets in teamfights, R makes untargetable
Recommended Items
Diana

Nashor's Tooth
Core
Build every game

Shadowflame
Core
Build every game

Zhonya's
Core
Build every game

Plated Steelcaps
Defensive
Armor boots vs Master Yi's AD damage

Bramble Vest
Counter
Grievous wounds + armor vs Master Yi's sustain/autos
Master Yi

Blade of the Ruined King
Core
Build every game

Guinsoo's Rageblade
Core
Build every game

Wit's End
Core
Build every game

Mercury's Treads
Defensive
MR + tenacity vs Diana's AP damage and CC

Hexdrinker
Counter
Magic damage shield vs Diana's burst
Diana's Worst Matchups
Master Yi's Worst Matchups
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