>>49897181
Nah it activates an unlimited amount of times per day so long as your stam is above 50%, but it also drains 50% of your stam every time, so it's not exactly spammable but with smart action use you can have it up almost all the time even against dangerous enemies.
For example, you're facing some tough level 1000+ spiral king in the void or some nefia while at 90% stamina, he pops sound ball for 5k damage on you and you pop fate shield, you're down to 0 health and 40% stamina. If you immediately quafff ramune or coffee after to bring your stam back up to 55% then you're protected again, and you can then heal back up. The AI packages of enemies never spam spells in quick succession so you're not gonna get sound balled twice.
Of course, if he sound balls again and brings your stam down to 5%, you can't do the exact same thing, but if add tactics like teleporting away, loytelmart tickets used on companions for in-battle shoulder naps and arm massages (you don't actually sleep during the shoulder nap when caffinated with sharp mind and get the stam instantly), plus the pheonix revive from jure statue or a pheonix potion, which only pops after you take fatal damage while NOT having fate shield up, and you can have tons of redundancy death shields and survivability.
If you're smart, efficient, and well-resourced with regards to stamina and magic, you can get through really late game progression in eternity oath with arguably better survivability than oathlesskeks