Unstable Unicorns: Mystic Rainbow Unicorn Promo Card

This promo card is an Ultimate Unicorn that forces the owner to discard their hand when it enters the Stable. Afterward, whenever another player plays a Magic card and it moves to the discard pile, the card’s owner may add that Magic card to their hand. It functions as a reactive card-stealing engine tied to opponents’ Magic plays, rewarding timing and observation while resetting the owner’s initial resources on entry.