I expect we'll never see most of these people again, but I hope that I'm wrong
In fact, it sees play in the 99 of around 75,000 decks according to EDHREC
(2024-11-08) To determine the total cost of a spell, start with the mana cost or alternative cost (such as a flashback cost) you're paying, add any cost increases, then apply any cost reductions
A card like Tergrid, God of Fright gives us immense value in combination with cards that say each opponent discards a card or sacrifices a creature. Casting Tergrid and following with a planeswalker like Angrath, the Flame-Chained or something like The Eldest Reborn is back-breaking
Davros, Dalek Creator is a strong option, generating artifact creature tokens and forcing discard or draw effects when opponents take damage, perfect for aggressive or artifact-focused strategies