Toph, the First Metalbender (TLA #247)

Nontoken artifacts you control are lands in addition to their other types. (They don’t gain the ability to {T} for mana.)

At the beginning of your end step, earthbend 2. (Target land you control becomes a 0/0 creature with haste that’s still a land. Put two +1/+1 counters on it. When it dies or is exiled, return it to the battlefield tapped.)