Get a skiff and ur magamasaur then go to were there are a lot of rocks when u are finished drop what u dont want then pick up the magmasaur with ur skiff and fly back to base awesome way to farm it is fast and easy.
Yep, this creature is awesome! Gathers metal and crystals and rocks very well, and takes 20-25 standing torches to hatch. Can swim in lava, a plus, and has a swipe attack (R2 for ps4), a fire thing where it spits fire out of the holes on it's back (X for PS4) and a blast of fire from it's mouth that requires metal ingots, which you can smelt from the magma boi(L2 for ps4). They are very strong and dangerous. Beware!
Take a Magmasaur out with a Basilisk and level weight into the basilisk. Now you have a replacement for the anky and Argy. Magmasaurs have weight reduction for metal to 50 Lbs per stack, while Basilisks have weight reduction for stone to 12.5Lbs per stack. Together you can clear the mountain. Be sure to pick up one of each!