Iroas,
Grand Abolisher,
Intrepid Hero,
Royal Assassin.
Royal Assassin and
Intrepid hero don't fit with the deck and aren't costed well with conditional removal. Suggest replacing with other
Angel, Dragon or Demons, or better removal e.g.
Hero's Downfall,
Slaughter Pact,
Murder,
Dreadbore,
Go for the Throat, even
Doom Blade.
Chaos Warp is good for getting rid of non-creature permanents.
Grand Abolisher has a nice affect, but doesn't fit with your deck, which is dropping creatures and attacking, not control. Iroas is nice, but I'm not sure of its usefulness. I'm on the fence, but leaning towards replacing. Same with Orims Chant. Don't see the value or synergy with the deck, just a random white control spell.
Lightning Bolt and Never//Return could also be replaced with better spot removal (see above) or with more board wipes e.g.
Day of Judgment,
Wrath of God (both 4 mana which is less than
Crux of FateCrux of Fate, and cheap)
Damnation - an expensive card, but there are heaps of board wipes in black and white.
Black Sun's Zenith will get around indestructible creatures.
Not sold on the
Darksteel Plate either.
Lightning Greaves and
Swiftfoot boots are essential to protecting Kaalia and other key creatures, but I don't see the value in
Darksteel Plate. Similarly with
Whispersilk Cloak. Most of your creatures have flying passively, which gives them some evasion.
I don't have my Kaalia deck on me at the moment, but I'll pick up and see what else it runs for other suggestions.