Final Fantasy X - Omega Weapon (Optional Boss)
I went back to my FFX save file on PS4 just to do some of the optional content. I basically went into this boss blind and I obliterated him with Anima. In fact this boss fight is way easier than all the original creations in the Moster Arena, and even easier than some of the area or species conquest.
I almost wanted to re record a fight without using summons...