Archon of the Triumvirate [Return to Ravnica Prerelease Promos] 51a During each player's End Phase:

During each player's End Phase: You can attach 1 "Stellarknight" card from your Extra Deck to this card as a face-up Xyz Material

Response Team" once per turn

It gains ATK equal to its Level x 100

banish it face-up

Archon of the Triumvirate [Return to Ravnica Prerelease Promos] 51a During each player's End Phase:Set: Return to Ravnica Prerelease Promos Type: Creature Archon Rarity: Rare Cost: {5}{W}{U} Flying Whenever Archon of the Triumvirate attacks, detain up to two target nonland permanents your opponents control. (Until your next turn, those permanents can't attack or block and their activated abilities can't be activated.)