Berserk

I had 6 of them when trying to evo my Bone Fish. The game trolled me so I took 10 tries to get an Amelit. At least I don't have to worry about collecting these for a month.

I don't grind ocean of heaven... ever.

Will grind tower to the sky (for dragon fruit) and King of the Gods (For delicious exp) though.

Considering how much time players spend grinding Ocean of Heaven, a pair of Mystic Masks isn't really a problem at all.

I grind Ocean of Heaven when I need mystic masks and Hill of Iris' Rainbow when I need dub-mythlits. In the former you get a lot of blue and light exp, and in the latter a lot of red and blue exp for your pets. Starlight Sanctuary is a good farm, but the king gold and dub-mythlit almost never drop, so it's pointless unless you want to rank up or all colours to feed. Even then, the legendary dragon or skydragon normal dungeons are better drops.

Yeah, I had been running this one for a couple days planning on selling them all and buying something somewhat worth my time. No dice.

I always have a problem getting the type of divine mask that I need!