Chandra of the Gearhulks

: Chandra of the Gearhulks enters the battlefield with a number of loyalty counter on her equal to the number of artifact creatures you control.
+1: Reveal a card from your hand. If it is an artifact, Chandra deals 2 damage to any target. Otherwise, discard it.
-7: Create a 5/5 colorless Construct artifact creature token with first strike.