Krono Dagger

When Chrono Dagger enters the battlefield attach
it to a desired creature. The creature's stats will be altered to have 5 health and 3 attack damage. The Chrono Dagger will let your turn back time to
bring back a creature from exile or your graveyard
back to your hand, you may only use this ability
once every three turns. When equipped creature
dies you may not transfer Chrono Dagger to
another creature, instead you will put it
somewhere in your deck and then shuffle the deck.