On mobile get a high lvl sabertooth or an op dire wolf from the yeti cave, go to swamp cave (artifact of the immune) or if you dont have acces for gas mask go to middle chamber (artifact of clever), kill every araneo, plumonoscorpius, arthoplurea on your sight

I came out with 4 stack (1 stack on mobile = 5k, 4 = 20k) almost encucumbred after inside swamp cave for 20minutes killing spree with my dire wolf lv (580 before tame - 878 after tame)