Hey! Your deck looks pretty good! However, a few things do stand out too me.
- One of the things that stands out is that you might have too many buffs. Buffs are great, but at the same time are useless without a body and eat up your card advantage. I tried playing a deck with Second Wish, First Wish, and astral Phasing(It checks both Reva and the old Cassyva) and one problem I quickly found was I was burning cards too quickly because of my buffs. Your deck has no card draw, so once you play Cosmic Flesh+ Falcius you’re stuck at 5 to 4 cards.
If this is a problem try cutting Cosmic Flesh. Do you really need it? I get it’s really nice with Nimbus but so is Second Wish and you have Primus Shieldmaster, Kron, and Aymara. Do you need two more provokes?
-Another issue is the Lightbenders. Lightbender is a great card but do you really need three? Especially when you have three Siphon energies already? Try cutting one or two and replacing them with Allomancer, Dioltas, etc. depending on what deck you actually want.
Now as for what cards you want to add it depends on what deck you want to build. You mention dervish Zirix but your deck looks more like midrange. I’ll leave suggestion for both but honestly it’s a really small change for both:/
-2 Cosmic Flesh
+2 Ethereal Obelisk
Might want to consider:
Whisper of the Sands, I haven’t done enough testing but it’s a card with potential.
Circle of Des, pretty much your big red ABBBBBBOOOOORTTTTT! Button.
-2 Cosmic Flesh
+2 Primus Fist/Healing Mystic
+1 Dancing Blades/ Tech card?