
Enchant creature
Enchanted creature has "At the beginning of your upkeep, sacrifice this creature unless you pay its mana cost."
Devoured by the mists, Tolaria was stuck in time, trapped between two eternal heartbeats.
Illustrated by Andrew Robinson
Released on October 12, 1998
You choose whether to pay or not on resolution. If not, then you sacrifice the creature. You can choose to not pay if you no longer control the creature on resolution.
You have to even match the color requirements of the mana cost.