Diamond Pick-Axe
Artifact — Equipment
Indestructible (Effects that say "destroy" don't destroy this Equipment.)
Equipped creature gets +1/+1 and has "Whenever this creature attacks, create a Treasure token." (It's an artifact with "
, Sacrifice this token: Add one mana of any color.")
Equip 
Illustrated by
The Lost Caverns of Ixalan#143UncommonEnglish