mtg card list database Then and Now, Part 1 MTG Card Database - Magic:

Sanguine Bond is the traditional card that goes infinite with Exquisite Blood, creating a feedback loop between the two abilities

Kida, Protector of Atlantis (206/204) Enchanted Rare ($180) One of the lesser known characters on this list, Kida, Protector of Atlantis is also the first non-villain to appear

That said, you can access 7 of your 15 cards in your sideboard in best-of-one matches using special cards like Invasion of Arcavios, Fae of Wishes through the Granted mode to look for cards outside the game cards in your sideboard are considered to be outside of the game and similar with special mechanics like lesson and learn from Strixhaven

Often you will be breathing a sigh of relief when you are able to cast this Mercenary for 4 mana

4/10 I think I got Garruk about right