Mystery Booster Playtest Cards 2021

Instant

Shuffle your whammy deck, then reveal cards from the top of your whammy deck until you reveal an Island or choose to stop. Then, if no Islands were revealed this way, Whammy Burn deals X damage to any target, where X is the number of cards revealed. (A whammy deck consists of a Plains, Island, Swamp, Mountain, and Forest.)

Whammy Burn

Artifact

As Pithing Spyglass enters, name a keyword ability or ability word.
All cards in all zones lose that keyword ability or ability word and all text tied to that ability.