Gammoth Armor

Equipped creature gets +X/+X and has trample and "Landfall—whenever a land enters the battlefield under your control put a +1/+1 counter on another target creature." Where X is the number of lands you control but don't own.

Whenever equipped creature deals combat damage to a player, search that players library for a land card, put it
onto the battlefield under your control, then shuffle your library.

Equip {2}