Lady Moonshadow

Hexproof from artifacts, creatures, and enchantments

Whenever a creature an opponent deals combat damage to you, you may pay {1}{w}{u}. If you do, that creature becomes a colorless land called Moon, with {t}: Add {c} and loses all other card types and abilities. Gain control of it.

Moons you control have {1}, {t}: Surveil 1, then
draw a card.