Derevi, Empyrial Tactician [Commander 2013] Eldrazi Aura Set: Commander 2011 Type: Instant

Set: Commander 2011 Type: Instant Rarity: Uncommon Cost: {2}{U}{U} Counter target spell

Your path is clear

pay {U} and exile it with four time counters on it

Each land with an activated ability that isn't a mana ability doesn't untap during its controller's untap step

Derevi, Empyrial Tactician [Commander 2013] Eldrazi Aura Set: Commander 2011 Type: InstantSet: Commander 2013 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.