
Whenever an opponent casts a spell, Kaervek deals damage equal to that spell's mana value to any target.
Kaervek the Merciless has 7 printings, first in Time Spiral (2006). EDHREC ranks it #2,722 among Commander cards. It appears most in Valgavoth, Harrower of Souls decks (16,177 on EDHREC). 2 public decks on TCG run it. It has 3 official rulings.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.