The Gigadesmodus from the boss fight on Lost Colony does full damage to Neophytes.

If you see this boi with your tames prepare to find a new tame

To battle these things you can get a bunch of gloons and trap this thing into your gloon trap you setup and let the gloons melt the living hell outta this thing, thyla bleed also helps if you have it trapped especially if its a good stat thyla with a good saddle and you should be fine, the occasional grabbing happens but if its trapped you should be fine, just make sure you trap it first and foremost cuz if you dont and arent around other players in city missions then well its hell I would know.

Finally they scale from 50, to 150, 250 then finally 300 being the toughest one out of the ones!

Hope this advice helps!

Sincerely Grug [Grugarian Empire] the Caveman

Absolute monstrous Demons. Ther take 95% reduced damage from tamed Dino’s and at their weakest have 21k health. Can also pick you up from your mount, fly you high into the air and then drop you. I’d suggest in investing in creatures with the bleed affect. If playing on a server that allows for Dino transfers. Bring reapers to ground them and bring Deinosuchus to chomp them. I barely won on Gamma difficulty

Have a drakeling for slow fall when it grabs you, and a sword or gun (depending on what works best for you.) Use a trap if possible, or a shield and plenty of armor.