mtg legendary creature cards Supertype: Legendary, Type: Creature, Colors: Black, Red, 135 you may cast a permanent spell with mana value 2 or less from your graveyard Set of 6 Chronicles Rare

All this is a little academic, when you do imprint stuff it gives you a vast tempo boost and when you don't you still have a card which you can put to use

It not only singlehandedly wins games, but it also singlehandedly makes your booster pack profitable, being worth about $10

Brawl Legal Vintage Legal Timeless Legal Commander Legal Pauper Not Legal Oathbreaker Legal Penny Not Legal Toolbox Notes and Rules Information for Circle of Power: The Wizard token's ability resolves before the spell that caused it to trigger

Its also flexible

Ghostly Flicker - MTG Collection Builder

You do want to ensure you dump at least two big things out with it however and so it will put some build constraints on your list should you wish to use it