Gearhide Charger

Trample
Sacrifice another artifact: Gearhide Charger get
+1/+0 until the end of turn.
When Gearhide Charger dies, create X scrap
tokens, where X is it's power. (It's an artifact
with "Sacrifice X Scrap: Return target artifact with
mana value X or less from your graveyard to the
battlefield.")