Coldsteel Heart [Commander Anthology Volume II] Shonen Jump Championship Series Prize Cards apply these effects

apply these effects

all effects that add or subtract ATK or DEF are reversed

your opponent cannot activate Spell Cards during the next turn

Those creatures gain haste until end of turn

Whether you're a returning player

Coldsteel Heart [Commander Anthology Volume II] Shonen Jump Championship Series Prize Cards apply these effectsSet: Commander Anthology Volume II Type: Snow Artifact Rarity: Uncommon Cost: {2} Coldsteel Heart enters the battlefield tapped. As Coldsteel Heart enters the battlefield, choose a color. {T}: Add one mana of the chosen color. The Phyrexian death machine awoke, its coldsteel heart imbuing it with sinister new power.