The amount of element given by bosses on the island:

Broodmother (gamma) = 20 element

Broodmother (beta) = 56 element

Broodmother (alpha) = 148 element

Megapithecus (gamma) = 40 element

Megapithecus (beta) = 110 element

Megapithecus (alpha) = 220 element

Dragon (gamma) =80 element

Dragon (beta) = 220 element

Dragon (alpha) = 440 element

Hope this helps.

Not worth to grind on mobile,can’t shoot,used for extra armor like,fr?even mastercraft are better than it

Great for extinction but not much element anywhere else

Why would someone grind for an underwater dodo tek saddle?

It shoots lasers that use element for ammo

Literally outclassed by the mosasaur and its tek saddle

on mobile there is a tiny chance you can find these as an item from dungeon saddle chests

The tip is basically use all the resources and craft it.