CuthbertAllgoodz
Member
I wouldn't shy away from spending more than a single Mythril to beat an Ultimate or Ultimate+ if you feel you are close to being able to beat something and need a tiny boost or two. I think most seasoned players are comfortable spending lots of Mythril on refreshes during Orb Festivals and I'm sure the returns are far less (just counting orbs).
Yea I spent so many Mythrils on refresh during Orb Fests since day 1 that 1 or 2 Mythrils to Master a Ultimate would be nothing. It's more of a personal in-game sense of accomplishment thing for me to beat it "on my own". My luck on IX banners has been abysmal, same for Fest banners featuring IX relics or getting IX relics from a Lucky Draw.