mtg return card from graveyard to battlefield Dread - The List Reprints Dread Return (Commander Masters)

The massive burst of mana seems particularly useful with X spells like Genesis Wave and Finale of Devastation

Compleat with untap shenanigans, the ability to ping herself and free-cast your own cards or voltron up and free-cast opponents' cards dare they block, and even being the first card on this list to have black in the color identity and not just be mono-blue

And it's not like we can ban them all either

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)

Landfall is pretty easy to trigger with cards like Fabled Passage even in Standard, or creatures like Aftermath Analyst