@@torontogaming249Hydro goblet is best if you use Sacrificial Jade (his 2nd BiS but it's a BP weapon so not obtainable without real money) or Prototype Amber (best F2P weapon but to make it the weekly bosses of Sumeru/Fontaine must drop the right item). However, if Neuvillette use his BiS and have Furina in his team, an HP% goblet is better than a Hydro cup even with equal sub stats. Anyway, the difference isn't huge so just equip the goblet with the best sub stats.
Well, it's a weapon that you can only get via the BP, so by putting money into the game. Maybe the youtuber didn't want to buy it since they already have the Tome.
@fuqoi ik but even hes sig weapon is on crit damage and not HP so i thought kagura might a good option on him, well i think it's atleast better than prototype amber