OK, nothing to see here, move along...

: Add one mana of any color. Whenever you tap this land for mana, target opponent creates a 1/1 colorless Spirit creature token.

All creatures get -1/-1.

Creatures don't untap during their controllers' untap steps. Whenever a creature enters, untap all creatures.

Enchant land Enchanted land is a 2/2 blue Elemental creature with flying. It's still a land. When enchanted land dies, return that card to its owner's hand.