The answer to your question Jneul is Yu Yevon and Yunalesca, both started Sin and the Spiral of death theme of FFX
Got a new question for you all, it came to me when I was coming home :P
In FF7, during the Chocobo sidequest to gain the golden chocobo needed to earn the KOTR materia, what was the name of the main chocobo rider rival? Hint - He always used a souped up Black Chocobo
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"
