Changes I would make:
Loyal Cathar -> 
Imposing Sovereign
The WW cost is a bit prohibitive for what it is.  Sovereign seems like it has more play to it.
Aven Mindcensor -> 
Vryn Wingmare
Both fit into the mould of 'disruptive 2/1 flyer'.  I feel as if the Wingmare's ability will be relevant more than the mindcensor blanking an opponents fetch.
Porphery Nodes/
Griffin Guide -> 
Angelic Destiny
I don't know how well Porphery Nodes plays in cube.  Have played it in modern and it was pretty sweet, I just think people would be prioritising actual removal and wraths over it.  Added Griffin Guide as another option to cut, just because the two cards are a bit similar and I really wouldn't want to draft two of these effects.  You could even cut the other one of these for your chosen Ajani as well...
 
The rest take a little more thinking.
How many sweepers do you want red to have?  I wouldn't probably cut 
Mark of Mutiny myself, as Harness By Force seems enough.  Having 
Pyroclasm, 
Anger of the Gods, 
Bonfire of the Damned, 
Blasphemous Act and another sweeper does seem a lot, so maybe cut one of these?
 
Mystic Confluence I don't really know.  I never know what cards to cut in blue.  Since you are/were already contemplating cutting 
Spell Pierce for 
Force of Will why not just try Confluence in its place?