You have some iconic Elves with Elvish Piper, Fauna Shaman, Imperious Perfect, Oracle of Mul Daya, Quirion Ranger, Tolsimir Wolfblood, and Rofellos, Llanowar Emissary
A PSA 10 version went up for auction at PWCC in October 2022 and sold for $40,800
An aristocrat deck is one that sacrifices its own creatures for value, which is something that you will always want to be doing with a Sephiroth Commander deck
Otherwise, put a +1/+1 counter on this creature, then put the card back on top or into your graveyard. So yeah, the drawback can bite you in the ass , because your opponent can dig a bit and pump his creatures
Playing against a deck that might bring in Stony Silence
Im not a fan of cascading bans (its a path to madness and a 200-card banned list), but in this case, I think we have to use it on Sway of the Stars