Ice Cave

{3}{U}{U} · Enchantment

Whenever a player casts a spell, any other player may pay that spell's mana cost. If a player does, counter the spell. (Mana cost includes color.)

Motor: se resuelve a mano

Rulings (1)

The mana cost does not include cost increases or reductions.
Wizards of the Coast · 2004-10-04