Midna, Twilight Princess

Gift 10 life (You may promise an opponent a gift as you cast this spell. If you do, they gain 10 life before its other effects.)

If the gift was promised Midna, Twilight Princess enters with lifelink and it becomes night.

When Midna, Twilight Princess becomes the target of a spell, it becomes night.

Midna, Twilight Princess has hexproof and indestructible as long as it's night.