[Therrion] Anti-Meta Spirit?

[Therrion]

Cannot be Special Summoned. During the End Phase of the turn this card is Normal Summoned or flipped face-up: Return it to the hand. When this card is Normal Summoned: Target 1 monster in your opponent's Graveyard; banish it, and if you do, this card gains ATK equal to half that monster's ATK.

 

Again, keeping it simple but effective. Not sure if this would actually find a home, but OPT graveyard disruption is cutesy.

[Philemon]

I like it, the effect can be annoying on the grave, the boost can get pretty high even with half-ATK, and it seems like something the Spirit cards should have. 2 things I'd recommend, change her type to Spellcaster (as the ability seems more like what they would have), and change her name. D(a)emon is always translated as Archfiend in the TCG, and given her effect it seems unfitting since she doesn't exclusively banish Archfiend. I'd lobby for Gotami the Ghost Destoryer, as a reference to an earlier card of similar properties, and of the first ordinated Buddhist woman.

[Therrion]

You seem to be well versed in Buddhism/Hinduism, that's cool. Respect~

As for the name, I may change it away from Demon. I tend to spend very little time with names, so it'll be one of the things I revise (Will probably go with your name as I like the reference to Kycoo). As for the Type change, the art goes far more towards Warrior than Spellcaster, but could pass. I think I'd rather her be searchable via RotA though than anything Spellcaster-Type could offer.