Kaervek the Merciless

five generic mana one black mana one red mana Legendary Creature — Human ShamanPower and toughness5/4

Whenever an opponent casts a spell, Kaervek deals damage equal to that spell's mana value to any target.

"Rats and jackals feast in his swath, but even they will not walk with him." —Mangara

Showing Duskmourn: House of Horror Commander#222

Price

0.34 $

37 printings · up to 0.42 $

Daily estimate from Scryfall, not a shop quote.

2021-03-19
An ability that triggers when a player casts a spell resolves before the spell that caused it to trigger. It resolves even if that spell is countered.
2021-03-19
Alternative costs, additional costs, and cost reductions don't change a spell's mana value. Its mana value is still based on its mana cost.
2021-03-19
For spells with in their mana costs, use the value chosen for X to determine the spell's mana value.