Once Sephiroth flips, which is easy to achieve with an Accursed Marauder or any kind of Grave Pact effect, the Blood Artist effect becomes permanent, and you get access to a terrifying 5/5 Flier that can draw you several cards a turn
Turning opposing creatures into 2/2s deals with most dangerous threats, especially commanders
Because your first coin flip each turn is guaranteed to land heads, cards like Zndrsplt, Eye of Wisdom become major value engines
Tap four untapped tokens you control: Put three +1/+1 counters on Baylen, the Haymaker
Endurance Endurance sees some fringe competitive play as a way to deal with graveyard strategies
Enter the Infinite, unlike it's affinity-based cousin is a very good card and often does read You win the game. That is what you want if you are waiting till turn 12 to do something big (although you should always protect Enter the Infinite with at least one counterspell)