Epic Downfall
Sorcery
Exile target creature with mana value 3 or greater.
The dragon had a lot of things going through his mind that day. He didn't expect a sword to be one of them.
Eric Deschamps
The List (PLST)
• #ELD-85Rulings
If a creature on the battlefield has {X} in its mana cost, X is considered to be 0.
(wotc • 2019-10-04)
Rulings
If a creature on the battlefield has {X} in its mana cost, X is considered to be 0.
(wotc • 2019-10-04)