Jinx, Left Behind

First Strike, Haste
When Jinx enters the battlefield, create a 0/1 Artifact Creature token with Haste and "{t}, deal 2 damage to any target."

Whenever Jinx attacks, you may sacrifice an artifact, if you do, deal damage to every creature target player controls equal to Jinx's power.

Sacrifice 15 artifacts: Target player loses 40 life.