I Fought the Strongest Minecraft Bosses

I can't believe how it ended... I added a mod that lets me fight the strongest bosses in Minecraft. I have fought some of these bosses before, but this time things are different. Can I be successful in fighting these bosses this time around, or will they defeat me again? Music: Glitchxcity -    / @glitchxcity   Ludwig and Schlatts Musical Emporium -    / @ludandschlattsmusicalempor6746