Derevi, Empyrial Tactician (Commander 2013) [Commander 2013 Oversized] BT10-006 Exchange ownership of the revealed

Exchange ownership of the revealed card and Tempest Efreet

and create three 2/1 black Bat creature tokens with flying

then you may put a power and toughness sticker on a creature you own

all creatures able to block target creature with four or more legs do so

Draw a card for each one they gained control of this way

Derevi, Empyrial Tactician (Commander 2013) [Commander 2013 Oversized] BT10-006 Exchange ownership of the revealedSet: Commander 2013 Oversized Type: Legendary Creature Bird Wizard Rarity: Mythic Cost: {G}{W}{U} Flying Whenever Derevi, Empyrial Tactician enters the battlefield or a creature you control deals combat damage to a player, you may tap or untap target permanent. {1}{G}{W}{U}: Put Derevi onto the battlefield from the command zone.