Fierce Empath
Creature — Elf
When this creature enters, you may search your library for a creature card with mana value 6 or greater, reveal it, put it into your hand, then shuffle.
Johann Bodin
Core Set 2021 (M21)
• #181Rulings
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.
(wotc • 2024-11-08)
Rulings
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.
(wotc • 2024-11-08)