Vampiric Tutor One of Magic's two best tutors, and another important cEDH card, the ability to grab any card from your deck for just one mana and a little bit of life is just so strong that the card is restricted even in Vintage
Unlike Sneak, a brand new keyword arriving in the TMNT set, Partner is a returning keyword, having featured in the Commander format for a decade
Snapdax, Apex of the Hunt wants to mutate so it can deal damage and gain you life
During design, all that was needed to transform a Werewolf was having two spells cast in the turn, even if one was cast by you and one by your opponent
Thats probably not good enough in other formats, but Commander is going to love it
Integrating sacrifice outlets in your play offers flexibility: you can ramp when needed or convert your resources into card advantage, ensuring your strategy stays fluid and reactive to opponents' moves