Shadow SSB is instant cast, giving it a great DPS. You deal your damage and start charging your next action, instead of waiting for the Red Bar to fill.

I'm doing some core elite dungeons. I usually do some core dungeons, then go back and do the elites. Today I fought elite Bartholomew in XIII. I had only vague memories of him in the previous event. The description made it look to be all about elemental damage. Fine, I went with Celes and Lightning.

Dr. Mog, you liar. The Balls were irrelevant, and I ended facing the Tankiest tank who ever tanked. Without Armor Breakdown. It was hilarious and annoying at the same time. Celes killed him at 00 in the Doom counter. Vivi had to save the fight with Drainga and Ruinga, and the occasional Meteors to the face. Got only Expert. At least I got the Mythril and Stamina Refill I wanted.