To beat this on gamma and beta, use this list:

17 Megatheriums

2 Daedons

1 Yuty

Make sure they are all high levels

I did gamma with 2 friends prim shotguns and about 1100 shotgun ammo and we beat her with 2mins left

for me you need to kill beta one 18 tame mega 1 yatu 1 pig and 200% damage shotgun

Healing rocket launchers AND A LOOOOOOOT OF REXES

The best strategy in my opinion to fight this beast is to mutate megatheriums in health and melee, get 18 ready for battle with good saddles a yuty that you’d ride on and a daeodon make sure to have a bunch of meat on it because they demolish meat when passive healing

A megatherium with 345 melee can do over 1,500 damage per hit (as long as it’s mate boosted and courage roared) so 19 of those guys and a yuty and you will defeat the broodmother

If you have access to scorched earth. Use a mantis with an ascendant sword and high hp

Megatheriums. That’s all I can say. Use megatheriums for anything and everything to do with the broodmommy. They are probably also the best tame for the three artifacts needed and then you can reuse your cave megatheriums as battle ones (with good stats obviously)

I honestly don’t know why people are saying u need like 20 rexes. Went in with a decent rec, meh spino and some decent triceratopses, defeated it no problem.

Let's go, yesterday I beat alpha brood mother with 18 megatheriums 1 daedon 1 yuty 7 deaths (megatheriums had 30k HP, 900 or 700 damage and the yuty had 5k hp)

When exploring on Valguero you will eventually come across a ravine covered in webs in the redwoods. Do not, and I repeat, do not get curious and fly/jump in. The Broodmother will already be there as well as a bunch of bugs. You will likely not last very long. She has at least half a million health.

If you're going to try, bring at least 6-7 high level imprinted megatheriums.

This isn't the only method. This is just how I did it.

I was dissapointed to see that she only gave me a spider banner. I was expecting tek.

Megatheriums deal extra damage to chitinous enemies. Bring 17 of them, a daedon, a yuty and a fast mount.

Cruise missiles Cruise missiles Cruise missiles Cruise missiles and more Cruise missiles

Probably the easiest boss in the island. All you need to defeat it is 17 megatheriums, 2 daedons, 1 yuty. Will kill broodmother no matter what.

Feed it your meat now I dare you

Super easy all you need is 18 fully level megatheriums a yutryanus and a daedon to kill the gamma version

Don’t bring rex’s bring Spino’s I know it sounds crazy but there is water in the arena and spino’s get a buff in water (you probably already know that) and bring one yuty (yutrannis) and you could easily beat it on alpha you might lose one or two but you will kill it.

Ring two reppers with high Melee STM and health

Megatherium has bug buff perfect for fighting the broodmother bc of the bugs

Your best bet is 19 mutated rex's and a yuty coz although megatherium is great its a waste of time as is only good for one boss where as rex and yuty will slaughter all bosses