Seasonal Ritual

Add one mana of any color. (Then exile this card. You may cast the creature later from exile.)

Rosethorn Acolyte

Vigilance
Whenever you cast an Adventure spell, you may copy it. You may choose new targets for the copy.

Destroy all non-Giant creatures. (Then exile this card. You may cast the creature later from exile.)

Whenever you cast an Adventure instant or sorcery spell, copy it. You may choose new targets for the copy.

Return target permanent you control to its owner's hand. (Then exile this card. You may cast the creature later from exile.)

Counter target spell with mana value 3 or less. (Then exile this card. You may cast the creature later from exile.)

Whenever you cast a creature spell that has an Adventure, draw a card. (It doesn't need to have gone on the adventure first.)

Destroy target creature with power 4 or greater. (Then exile this card. You may cast the creature later from exile.)