The big advantage of using Butterfly on an Otyugh is that with a 0 attack you don't have to worry about Fire Shield, Procrastination, Permafrost, or Thorn Carapace messing up your destroyer.
Following that logic, Devourers, Graviton FireEaters, Fire Spirits, Chysora, Fate Egg (lawl) are also good choices of cards. I might pick the devourer since he's kinda awesome
Edit: I'm using a PA and a Pest instead of the two unupgraded cards in the deck, and I'm keeping statistics here:
http://elementsstatistics.comxa.com/getstatistics.php?dv=2929868612
If you use extra oty, you get a better chance to draw 1 in begining hand
If you use pest, you can sometimes take away important quantum against some god, and you can burrow it early (e.g fire from divine glory, water from eldinois)
Totally your call, I use angel coz like i said its one of my favorite card in the game
The reason my PA is un-upped is because it makes the deck cheaper and makes the arrangement of cards look better
And btw, is it me or the stats URL not working for me (or do i need a login?)
hmm, Graviton Firemaster (0/6) at only 1 gravity seem to be the perfect replacement for angel.
I've squeezed in Fractal since this deck kinda lacks the "punch"
Well, my deck is open to changing to fit everyone's own style
But i never find myself lacking the "punch", for i am always very defensve until I get to the end when i get the queen, it becoms offensive enough to kill
Besides, being able to race scorpio's poison (I have over 15 wins against him now) will seem to proof my punch isnt that bad~
But if you want to fractual, fractual a minor phoenix, since firefly gives you fire quantum, and early phoenix can be very good to use up FG's spell against creature controls. Just oty one of your phoenix later on and then butterfly the ash!