Zeri

Arena changes

• Q: Attack Speed to Attack Damage over cap changed to 80%.
• W: AP ratio changed to 100% AP.
• E: Cooldown reduction on Passive or Q Hit changed to 0.75 seconds.
• E: AP ratio changed to 30% AP.
• R: Base bonus movement speed changed to 20%.
• R: Bonus movement speed per stack changed to 2%.²

Refund changed to 1 in patch 26.19 (was 0.75)³

• Zealot, AdAPt, and Zeri's Q passive can form a possible infinitely scaling build.⁴
• Fulmination and Statikk do not work together with Zeri because her auto fires five attacks at once.⁵

• With autocast, Zeri can use E to kite while Wildfire, Fox-Fire, and Sivir Q move around the map.⁶
• During the round loading period, Zeri can use Q to hit the dummy; keeping R active while doing so can let her start the round with R still active.⁷
• Rice and X augments do not work on Zeri's Q, which is treated as proc damage.⁸
• Max Ethereal with full AP, Marksmage, and Moonflair can deal heavy damage on Zeri.⁹
• With Chauffeur, shaking can change where Zeri's Q lands.¹⁰

• Rice and Chicken has no effect on Zeri's Q bullets or Zap passive: it adds no damage, cooldown, or healing effect. Whether this is a bug or intended is unclear.¹¹

Earlier formats

• Zeri no longer went above the attack speed cap with Slow and Steady after patch 25.23.¹³ 8x2 duos
• Zeri's Q cast time was not increased by Slow and Steady.¹⁴ 8x2 duos
• Slow and Steady interacted with Zeri's Q passive: attack speed could exceed its cap, granting attack damage through the conversion while Slow and Steady also granted attack damage.^15161718 8x2 duos
• Moonflair Spellblade interacted with Zeri's passive so that attacks could reset the attack cooldown, allowing near-infinite attacks depending on clicking speed; Magic Missile could trigger from those attacks.¹⁹²⁰ 8x2 duos
• Slow and Steady with Zeri was almost certainly a bug.²¹ 8x2 duos
• A bug involving Zeri and Slow and Steady was attributed to Sword of Divine; selling the item made the bug go away, though how it worked was unclear.²² 8x2 duos
• Zeri's Q did not cancel a movement command, which could make kiting easier.²³ 8x2 duos
• Zeri could use Fruits of Your Labor to eat plants quickly by dashing through walls.²³ 8x2 duos
• Relentless no longer triggered from Zeri's Living Battery attacks.²⁴ 8x2 duos
• Slow and Steady was awkward to play but still very strong for Zeri, with little counterplay for opponents because of itemization; Crit and Pen were easy to get.²⁵ 8x2 duos
• Zeri was played with Twilight's Edge, Gunblade, Statikk, and Vulnerability.²⁶ 8x2 duos
• Full crit, Urf's Spatula, and Vulnerability were used together on Zeri.²⁷ 8x2 duos
• Zeri's Q had a fixed 1-second cooldown with Slow and Steady, even with ability haste or more attack speed.²⁸ 8x2 duos