Origin of Metalbending

Instant — Lesson • Mana cost: {1}{G} • Avatar: The Last Airbender • Common

Choose one —
• Destroy target artifact or enchantment.
• Put a +1/+1 counter on target creature you control. It gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)

Metal is just earth that has been purified and refined.

Illustrated by Pauline Voss.