Strength-Testing Hammer (Galaxy Foil) [Unfinity] San Diego Comic-Con 2017 and you may spend mana

and you may spend mana as though it were mana of any color to cast those spells

Set: Coldsnap Promos Type: Token Legendary Creature — Avatar Rarity: Rare Flying

Set: Mirrodin Type: Artifact Rarity: Rare Cost: {2} Whenever a permanent becomes untapped

put a +1/+1 counter on the first creature

Each word rattles your mind

Strength-Testing Hammer (Galaxy Foil) [Unfinity] San Diego Comic-Con 2017 and you may spend manaSet: Unfinity Type: Artifact Equipment Rarity: Uncommon Cost: {1} Whenever equipped creature attacks, roll a six sided die. That creature gets +X +0 until end of turn, where X is the result. Then if it has the greatest power among creatures on the battlefield, draw a card. Equip {3} I don't know you, but that hammer rings a bell.