If I have 2 Mask of Foresight in play, do they add to Yasuo's might before his 'when I attack' trigger resolves, so his trigger does 8 damage?

Ruling: Yes, both Mask of Foresight triggers will resolve before Yasuo's trigger, giving him +4 might total, so his trigger will deal 8 damage.

Sequence:

• Place Yasuo's trigger onto the chain first
• Place both Mask of Foresight triggers onto the chain
• Mask triggers resolve first (adding +2 might each)
• Yasuo's trigger resolves last (dealing damage based on his current might)

Nuances:

• Triggers added to the chain from the same event can be placed in the controller's chosen order