Explosive Concoction

Deal 2 damage to target creature. Deal 4 damage
to target planeswalker. Deal 6 damage to target
player. Lose 8 life. Your opponent may pay
{4} to counter this spell. This spell can't be
countered in other ways. If you paid life in the
casting cost of the spell, gain X life, draw half X
cards, and sacrifice two permanents you control
unless an opponent pays one fourth of X in one
color. If an opponent pays this cost, the spell is
countered completely.