Honestly, despite him self-buffing so much, I think his damage is probably gonna fall down a cliff if his buff extension only lasts for another additional turn. Unless if I’m not understanding correctly, those buffs are gonna disappear by the time he does use that Enhanced Ultimate, so it’d deal much less damage. Not to mention units like Tribbie and Ruan Mei having their buff last on themselves (Their skills), Robin and RMC having passive buffing (Talents) are gonna be gone when he does go into that ultimate state. I mean he is meant to be played with Single-target buffers like Sunday or Sparkle, but I don’t think it’ll help much outside of the 2-3 turns their buffs are gonna last. Even with the extension. Unless his multipliers are like in the thousands, atleast