Imminent Doom
{2}{R}
Enchantment
~this~ enters with a doom counter on it.
Whenever you cast a spell with mana value equal to the number of doom counters on ~this~, ~this~ deals that much damage to any target. Then put a doom counter on ~this~.
Last-Ditch Effort
{R}
Instant
Sacrifice any number of creatures. ~this~ deals that much damage to any target.