Enchant Swamp
(Target a(n) Swamp as you cast this object. This card enters attached to that Swamp.)

: Until end of turn, enchanted Swamp becomes a 2/2 black Spirit creature with "

: This creature gets +1/+1 until end of turn." It's still a land.
When enchanted Swamp is put into a graveyard, you may return this card from your graveyard to your hand.