The ink colors confirmed for the debut franchises help narrow the picture: Monsters Inc's flagship team card, Sulley & Boo, is dual-ink Amber and Ruby, Up's flagship team card, Carl Fredricksen & Russell, lands in Emerald, and Turning Red lands in Ruby
If youre wondering why it didnt rank higher on my list, consider the fact that you need to be in Mardu colors and how the demanding mana pips in the cost can make it a bit unwieldly
Floodborn characters are much more powerful versions of characters, affected by the flood of ink that happened in Rise of the Floodborn in some way
Aragorn, Hornburg Hero Not only does Aragorn, Hornburg Hero gives you the opportunity to repeatedly double the counters on your creatures assuming you can get them renowned, but it also helps your creatures win in combat
Lotus Petal Lotus Petal is basically Black Lotus at home, but its nevertheless powerful enough to be restricted in Vintage and a powerhouse in Commander
Court of Ardenvale - is another source of repeatable reanimation, and if you can manage to stick or take the monarch role, your stuff comes back to the battlefield instead