mtg black and blue cards Supertype: Legendary, Type: Creature, Colors: Blue, Black, Red, 57 The cost in top right

Bartz & Gilgamesh from Final Fantasy V The chipper hero of Final Fantasy V comes with his steed Boko, and has an affinity for Birds, making him cheaper to cast the more Birds you have on the table

More casual decks will like how this scalessort of

The Efreet can block and live through doing so almost every creature in the cube that costs the same or less

Commander also gives you the option to throw a bunch of good stuff cards into a pile, add in some mana fixing and table interaction, and just have it work

Notably, it doesn't need to be the same legendary Assassin you controlled when the ability initially triggered