The Soul Stone
Type
Legendary Artifact — Infinity Stone
Mana Cost
{1}{B}
Oracle Text
Indestructible {T}: Add {B}. {6}{B}, {T}, Exile a creature you control: Harness The Soul Stone. (Once harnessed, its ∞ ability is active.) ∞ — At the beginning of your upkeep, return target creature card from your graveyard to the battlefield.