Might be a hot take, but I think Majin's move callouts should be the standard for boss fights.
I know, I know, it's only done to fit the character, because Majin loves the sound of his own voice and attacks so much that he calls them out, but it made for a really really easy tell for what move he was going to use and learn his moveset, without compromising on the difficulty of the fight (It's still a decently hard fight).
In a game like Minecraft, it's kinda hard for me to recognise the tells in the animations prior to the attacks, so I feel this change would make it a lot easier for casuals.