Searched around... does anyone else notice that he'll suddenly just give up? Like he'll toss one lion head, and then stop. Like he can't be bothered.

I thought it was a buff, except he's never affected by anything. Plus, his team's skills don't seem affected. Tried to see if it was level of opponents, except he'll do it to weak groups too. I have seen this in the Arena, in instances, etc. This isn't like Haku, who will stop before an opponent is zeroed out - and Haku's is included in the description.

I've leveled up his Ninjutsu and initiative in every way I know how, so it isn't that.

Am I just seeing things? Does he have a party to get to? His teammates will be leaking hp and he'll toss one roller, then go away again. It makes Madara look invested.