mtg flip card token Stainless Steel Angel - Metal Tokens Flip the Switch | Magic:

Cons: Legality

As many times as you want, provided that you have enough energy counters to use the ability

Mutant Ninja Turtle Partner Cards The best versions of all the Ninja Turtles and their master are the partner cards: Leonardo, the Balance, Raphael, the Muscle, Donatello, the Brains, Michelangelo, the Heart, and Splinter, the Mentor

Four mana isnt a ton and makes this more efficient than most of the other tutors unless youre specifically looking for a 1- or 2-mana spell, and even then, its on par with Chord and Finale

Some of these cards have been known to be multi-format all-stars, almost to the point of being broken, whilst others have been less played