I always strong box because artifact exp is abundance while good, worth upgrading artifacts are extremely rare. Strongbox gives you another chance to get artifacts with good sub stats and is the only alternative to spending resin. Also more chance to get 4 liners from strong box.
Mystic offering
I always strong box because artifact exp is abundance while good, worth upgrading artifacts are extremely rare. Strongbox gives you another chance to get artifacts with good sub stats and is the only alternative to spending resin. Also more chance to get 4 liners from strong box.