One of the best places to do this is the final level, the Void. You’ll be given the Kladen sword to fight with and after fighting about 5 bad guys the next area you go to spawns a ton of enemies. Keep attacking and dodging until you fill up 4 energy orbs. Hit “RB” to activate Delay of Fate then hold and release “X” 4 times to shoot 4 Phantom Blasts. You don’t even have to hit any enemies with the Blasts.