Zaahen

Arena changes

• I: Attack damage per stack changed to 1 to 2 AD.
• I: Health restoration changed to 30 to 45 for.
• I: Cooldown resets every round.
• Q: Bonus AD ratio changed to 10 to 50% bonus AD.
• Q: Healing against champions changed to 3 to 7% of his maximum health.
• E: Cooldown changed to 12 to 10 seconds.
• R: Base damage changed to 200 to 500 3.
• R: Bonus AD ratio changed to 150% bonus AD.
• R: Armor penetration changed to 5 to 25 3%.²

Bonus Attack Damage per Stack changed to 1% in patch 26.21 (was 1 - 2%)³

Undying Guard is available only to Zaahen. When Cultivation of War revives him, it damages nearby enemies, knocks them back and stuns them, then grants Zaahen bonus movement speed and invulnerability against distant enemy champions for 4 seconds.⁴ Patch unknown

• Zaahen's passive interacts with Circle of Death, which can make it deal massive damage.⁵
• Zaahen's quest is offered very frequently.⁶⁷⁸

• When Zaahen revived with his passive, the effect was compared to Xin Zhao's ultimate; sources differed on whether it knocked enemies back.⁹¹⁰⁴ Earlier Arena format

Earlier formats

• Zaahen's passive does not fully stack during Kindred's ultimate: after reaching 10 stacks, Zaahen's E, Q and an auto attack add only one stack before the ultimate ends.¹¹ 8x2 duos

Zaahen's revive could be paired with Zilean's ultimate and Guardian Angel.¹² 8x2 duos

• Zaahen's revive could take a long time, with full invulnerability during the revive; it often brought him into the ring of fire.¹³¹⁴ 8x2 duos
• Zaahen's nerfs were expected to reduce his sticking power and make it harder for him to kill tanky opponents.¹⁵ 8x2 duos
• Firefox and Don't Chase could trigger Zaahen's passive because they were coded as abilities.¹⁶¹⁷ 8x2 duos
• Depending on Zaahen's augments, especially attack speed, tank and movement speed augments, and on the enemy team, reaching maximum stacks without dying could be difficult.¹⁸ 8x2 duos