Scorpion, the Raging Flame

Haste, double strike
When Scorpion, the Raging Flame enters the battlefield, target player sacrifices a creature.
{1}{r},{t}: Target creature gets +3/+1 and gains
double strike until end of turn.
Whenever Scorpion, the Raging Flame deals
combat damage to a player, that player
sacrifices a creature.