If you're having trouble figuring out some of Zohar's attacks, here's a list of how to perform the attacks and what they do.
**This list may be incorrect.**
Metatron's Attacks
[] button: Single slash
Down + [] button twice: Double slash
Down + []: Downward slash
Up + []: Upward slash (can be used to juggle your opponent)
O: Spin attack; after activating this attack, press [] to charge
Left (or right) + O: Explosion Slash
Down + O: Explosion Stab
Up + O: Super Slash (mwa ha ha...)
Sandalphon's Attacks
[] button repeatedly: Fire gun -press [] faster to fire more shots (use the directional buttons to change the direction of the shots)
O button: Homing laser (use the directional buttons to change the direction of the shot)
Down, Up, []: Lightning Bolt (nice for ticking off your friends, hehehehe)
Down, down/right, right, [] OR Down, down/left, left, []: Charge
L2: Mines (press L2 again to fire a laser)
Shared Attacks/Abilities
Triangle button: Attribute Change
O button (while close to your opponent): Throw (use the directional buttons to throw in a different direction)
Hold X while moving: Fly faster
Tap any direction (up, left, etc) twice: Teleport
Down, down/right, right, right/up, up, X (must be entered quickly): Jump (you're pretty much invincible while in the air.)