Iascylla’s delayed trigger refers to the battlefield she held. Azir, Sovereign’s attack trigger refers to the battlefield where he is located when it resolves.

Explanation & source

Iascylla’s delayed trigger uses information from her hold trigger condition, so it is locked in when she triggers. Azir’s trigger condition carries no battlefield information, so it checks on resolution; if he is not at a battlefield then, instructions about that battlefield are ignored.

Riot’s answer ↗ · Vendetta Rules FAQ and Clarifications · Published 2026-08-14