Giant Killer

Chop Down

Destroy target creature with power 4 or greater. (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.

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

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

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

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

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

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