Actually, I know the serious weaknesses of Sephiroth due to the fact that i'm a Cloud user, and Level 150 Sephiroth fights are the easiest I get on DC ;)
He has long range attacks that can keep a close ranged melee at bay, but you can see his attacks coming to damn easy. I always block his attacks which allows me to get free hits with my Climhazzard if im on the ground or with Braver if im aerial :P
Scintilla as I said it's his most useful HP move, along Hell's Gate, but it only trully works when blocking a BRV attack. Well, my EX Build Cloud takes care of that, due to his Defense EX-Crush special ability ;) Just ask Stefl how fast I can get a full EX bar :P
Current PC Build
CPU - i7 8700K 3.7 GHz (4.7 GHz turbo) 6 cores OC'd to 5.2 GHz with Watercooling (Hydro Series H110i) | MB - Gigabyte Z370 HD3P ATX | Gigabyte GTX 1080ti Gaming OC BLACK 11G (1657 MHz Boost Core / 11010 MHz Memory) | RAM - Corsair DIMM 32GB DDR4, 2400 MHz | PSU - Corsair CX650M (80+ Bronze) 650W | Audio - Asus Essence STX II 7.1 | Monitor - Samsung U28E590D 4K UHD, Freesync, 1 ms, 60 Hz, 28"
