
At the beginning of your upkeep, reveal the top card of your library and put that card into your hand. You lose life equal to its mana value.
Illustrated by Livia Prima · Store Championships · #3
2025-06-06
If a card in a player's library has {X} in its mana cost, X is 0 for the purpose of determining its mana value.
2020-08-07
If a card in a player's library has {X} in its mana cost, X is considered to be 0.