The active player chooses war or peace first, followed by each other player in turn order. Each player will know what previous players chose when making their choice.

Archangel of Strife's bonuses apply immediately. Depending on your choice, Archangel of Strife will enter as either a 9/6 or 6/9 creature.

If there are two Archangels of Strife on the battlefield, and you choose war for one and peace for the other, your creatures get +3/+3.

As soon as Archangel of Strife leaves the battlefield, the bonus stops applying. If it returns to the battlefield, players will be able to make new choices.

Archangel of Strife's second and third abilities are linked. Similarly, its second and fourth abilities are linked. The bonus a player's creatures get depends only on the choice that player made when Archangel of Strife entered.