Ratchet has mqny cool setups.
Ratchet- Side Square > Side Square > Jump Cancel> Air SquareX3> Jump Cancel> Air Circle
Make sure to aim the sniper rifle at the end like an inch up.
Whats a jump cancel
this is me helping
Spike's higher AP combos are situations (requires wall bounce etc).
The highest mid-screen non-situational combo I was able to do with Spike was 75 AP. His Bread and butter combos gives you like 50 to 55 AP.
In general if you are playing online where there is a lag factor, don't really go for terribly difficult to pull off combos. They rarely work.
Instead develop your sense to read your opponent. Even if you don't have their fancy combos if you are better at reading and reacting to your opponent you can often win matches easily.
The only way is to practice a lot with human players. Play as many matches as you can, and don't get frustrated if you lose.
Playstation God of War Stars Battle Bore y'all !!!