Sage Aven [Ninth Edition] Stronghold {T}: You may play the

{T}: You may play the exiled card without paying its mana cost if you attacked with three or more creatures this turn

Set: Mercadian Masques Type: Enchantment — Aura Rarity: Common Cost: {2}{G} Flash

Set: Unlimited Edition Type: Instant Rarity: Common Cost: {U} Return target creature to its owner's hand

but during the next Standby Phase

Sage Aven [Ninth Edition] Stronghold {T}: You may play theSet: Ninth Edition Type: Creature Bird Wizard Rarity: Common Cost: {3}{U} Flying (This creature can't be blocked except by creatures with flying or reach.) When Sage Aven enters the battlefield, look at the top four cards of your library, then put them back in any order.