Fenrir has been a few of those, first appearing as a summon in FFVI, but this version of his appearance as an Avatar in FFXI
2025 has already answered that question decisively
For example, since flipping Sephiroth only requires four Creatures to die, regardless of who controls them, some of the strongest cards in the deck are edict Creatures, or Creatures that force each player to sacrifice when they enter
The rest of the deck is cheap removal and card draw that trigger all of our Wizards, so once we build up a big board of black mage Wizard tokens, we should be able to sling enough spells to kill our opponent pretty quickly, while cards like Burst Lightning and Go for the Throat help keep our opponent's creatures off the battlefield
Youre pretty much only playing this in bear decks, but its neat how this can attack as a 7/7 whenever Duskana, the Rage Mother is on the field