In Ark Survival Evolved on the the Lost Island map you feed the Magmasaur Sulfur until it becomes an Adult. Sulfur can be found in the Volcano Biome, and lots can be found near the Scorched Earth Biome which is located at the bottom.

They don't take damage when the volcano erupts if you are riding it

Using the rock drakes cloak ability allows you to get right on top of eggs without drawing aggro.

Magmasaurs can be found at the end of the fire wyvern trench. You find eggs back in that cave and you also get element back there. Hope this helps!

Magmasaurs are completely immune to the Dragon’s fire breath! Use them to easily defeat it!

When you dont have Ambergris, but still raising one. Use a Snowowl to heal the baby!

An easier way of obtaining Magmasaur eggs is to level up a Gigantopithiscus in the health and speed catagories, then bolt into the mountain, jumping over the bugs. Once you get to the magmasaur ‘den’ use a whip to gather a few eggs then get outta there

If you are trying to grab an egg on foot. A parachute and a grapple hook work pretty good

To tame these little guys, you need to steal a egg from them, the best place to get the egg is in Fjordur.

The easiest way is to use Desmodus with stamina build, you can be invisible with it (that means that others dino can’t attack you while you’re invisible). Land next to a egg and grab it asap, you just need to return to your Desmodus and fly away.

CAUTION!!!!! You can encounter Wyverns, so try doing this in the night (Desmodus ability its better during the night)

More heat = More strongness

Its also a walking forge

so first thing u want to do is go to fjordur and get roughly 50 blood packs as you will most likely get picked up by multiple desmodi as you will need to tame one one you get a high lvl one with high stamina you will then need to craft a whip once u get into the cave and do this on lost island you then need to wait till night then go invisible once invisible fly to an egg with not many magmasaurs nearby once u get to it equip ur whip and take it and instantly get out of there as they will all be aggrod when your getting out make sure to fly higher up for more time to evade searing spit and bam you got out with shitty lvl 20 magmasaur eggs and you wasted your time.

Use a desmodus’s Invis to go in the cave and steal an egg. I got a 140 doing this!

Ambergris last a lot longer in tek troughs.

Don't have tek? No problem. Just transfer your character with the ambergris in your inventory. Before you spawn, quit and return to main menu. Then re-download your character next to your troughs and your ambergris spoil timer is reset. 👍🏽

It can smelt metal into ingots with its smelting ability

To get a Magmasuarus Egg on fjordur Just tame a Desmodus and then fly in to the cave, land, take egg, fly away

An easy way to get the eggs is with a ridden Ferox, mostly because the Ferox is somewhat mobile and doesn't aggro *most creatures in the cave.

To feed they eat sulfur as baby's.

You can force feed ambergris to an adult magmasaur to heal it.

My dad came up with a fool proof strat, using a high level procoptodon, you can circle around the lava and aggro every magmasaur, but you are much faster, so do a circle and while they’re on the other side, hop off and grab the eggs, get back on and hop around, before you know it, you have every egg in cave

Here's how to successfully Steal Magmasaurs egg

1. Using a Desmodus to go Invisible (only possible at night) and entering there nest

2. Land down and grab an egg when there not facing the nest or near or walking towards the egg

3. GRAB THAT EGG AND QUICKLY GET BACK ON YOUR DESMODUS AND FLY AWAY

4. Fly back to the entrance or far away enough to unrender them because they will still be mad at you and attack you even if your invisible

And there you go,you now know how to steal there egg

(Note when it turns 5:15 in ark it will turn daytime and your desmodus will UnCloak make sure you leave before 5:15)