Zion of the mountains

Trample
When Zion enters the battlefield, exile all lands you control.
Whenever a land enters the battlefield under your control, exile it, then create a 2/2 Artifact Creature token with Trample
When Zion leaves the battlefield, destroy all tokens created by Zion, deal damage to any target equal to the amount of tokens destroyed by an ability of Zion, then return all lands Exiled with Zion to your field