Bastion Inventor

Inventor do Bastião (Bastion Inventor) (pt)

Creature - Vedalken Artificer | Power/Toughness: 4 / 4 (CMC 6)
Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for .)
Hexproof (This creature can't be the target of spells or abilities your opponents control.)