Heres how Id rate each summon in the set
But were already playing cards like Ashnods Altar in sacrifice decks, and because shes the one dealing damage, we can win with poison counters using Tainted Strike or kill creatures while gaining life Basilisk Collar
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The incidental Scry you get doesnt hurt either Three mana for a stun counter and a +1/+1 counter all on its own would be a card that is pretty close to playable, and the fact this adds a counter to every tap effect definitely makes this intriguing
With that in mind, it's full of instants and sorceries, and in a multiplayer format like Commander will likely ensure you want to keep at least some mana untapped so you can respond to threats
If there were fewer, I could maybe maintain a deck for each, but as someone who might play cEDH, Old School, Premodern, Legacy, Modern, Pioneer, Standard, Pauper, and even Vintage, its just too much to keep a tournament ready deck for anything I might want to play
