When Kai'Sa (accelerated with Cleave) conquers a battlefield with Sentry after the opponent plays Void Seeker, does the damage stay on Kai'Sa after the showdown, causing her to die when she returns to 4 might?

Ruling: Kai'Sa survives because damage is cleared during combat cleanup at the end of the showdown, before her attacker status is removed and she returns to 4 might.

Sequence:

• Kai'Sa (accelerated with Cleave) attacks the battlefield with Sentry
• Opponent plays Void Seeker
• Sentry dies, battlefield is conquered, draw 1
• Combat cleanup occurs, clearing damage from Kai'Sa
• Attacker status is removed (Kai'Sa returns to 4 might)
• Kai'Sa survives because damage was already cleared