Does Mask of Foresight trigger go on the initial chain with when I attack/when I defend triggers, and what is the resolution order when attacking Ahri with 2x Mask of Foresight?

Ruling: Mask of Foresight is effectively a "when I attack" or "when I defend" trigger that goes on the initial chain at the same time as all other when attack/defend triggers. When attacking with a 2 Might unit and 2x Mask of Foresight against a 3 Might Ahri, the attacker ends up at 3 Might and trades with Ahri.

Sequence:

  • All when I attack and when I defend triggers go on the initial chain simultaneously
  • Attack triggers go on the chain first, then defend triggers
  • Defend triggers resolve first (last in, first out)
  • When attacking Ahri: Ahri's defend trigger resolves first (-1 Might from Ahri), then Mask triggers resolve (+2 Might from 2x Mask)
  • When defending against Ahri: Mask triggers resolve first (+2 Might from 2x Mask), then Ahri's attack trigger resolves (-2 Might from Ahri)

Nuances:

  • Abilities with "when" or "whenever" are triggered abilities that use the chain, while "while" indicates passive abilities that don't
  • In multiplayer, the order is: attack triggers > everything else in turn order > defend triggers