Assuming your opponent tries to stop it as soon as you lose a flip, with Krark's Thumb out you have a 17.80% chance to drain 31 life (13.35% chance to drain 62!), but unlike most of the other coin flip cards it's not all-or-nothing, you still drain for each previous flip you won
But the reality is, it is just fast at putting Instants and Sorceries into your graveyard for just one card / two mana
G2 I lead off with a Cabal Therapy naming Counterspell and miss, but I see three Islands, Force Spike, Standstill, Phyrexian Dreadnought (!), and Vision Charm
Of course, the most valuable cards for any Disney Lorcana set do not necessarily only mean Enchanted cards, with the occasional Legendary or other popular card sometimes making their way onto these lists
Abyss Proxy Shop offers premium Pest Control MTG proxies printed on German black core paper, the same weight, size, and thickness as authentic Magic: The Gathering cards
Being able to recur activated abilities of creatures from your graveyard while growing your board is the exact type of value that casual Commander thrives off of