At the beginning of your upkeep, Lantern-Lit Flats deals 1 damage to target creature you control. : Add  to your mana pool. Activate this ability only if you control a Mountain. : Add  to your mana pool. Activate this ability only if you control a Plains. : Lantern-Lit Flats becomes a 2/2 white Bird creature until end of turn. It's still a land.