Siege Dragon [Magic 2015 Promos] HVY210 then it becomes an Aura

then it becomes an Aura with enchant creature

Set: Monarch Unlimited Edition: Unlimited Finish: Regular Type: Action Subtype: Attack Rarity: Rare Class: Light Illusionist Cost: 2 Power: 5 Attack action cards have -1 [Power] while defending Herald of Triumph

Set: 30th Anniversary Edition Type: Sorcery Rarity: Common Cost: {B} Return target creature card from your graveyard to your hand

if you have seven or more cards in hand

Siege Dragon [Magic 2015 Promos] HVY210 then it becomes an AuraSet: Magic 2015 Promos Type: Creature Dragon Rarity: Rare Cost: {5}{R}{R} Flying When Siege Dragon enters the battlefield, destroy all Walls your opponents control. Whenever Siege Dragon attacks, if defending player controls no Walls, it deals 2 damage to each creature without flying that player controls.