hardest custom zelda boss ever?

This new boss fight is brutally tough… on difficult mode he has attacks that go all the way up to 12 hearts of damage! Absolutely insane fight, a fitting end to a very challenging mod. A clip from my playthrough of The Ultimate Trial, a brand new OoT mod made by Richie and the Ultimate Trial team. Timestamps: 0:00 Pre-battle Cutscene 3:07 Phase 1 5:29 Phase 2 9:50 Ending Cutscene