U will need this all the time once u get a fabricator and u need obsidian and segmenting paste and personal I found it hard to kill animals for like 4 keratin so if ur on the island go in between the snow area and redwood forest and u will see a Rivar there will be some dams now if u haven’t looked in the dams then u will be rich but if u look in the m often then u won’t have as much
Get an argy and anky and go to a place where there is a lot of obsidian nodes and smack away with you anky and then put the obsidian in your argy because of the weight reduction and fly back to base. I have gotten 4 stacks at a time with this method.
If your playing on extinction the corrupted nodes can be used as polymer to so get your shadowmanes ready and shred the heak out of the big corrupted dinos that give the most or just do red orbital drops they have ALOT of big corrupted dinos
An awesome way to get polymer on the mobile version is to set up a bed next to the Skylord cave. Run the cave and use an Argy to get to blue ob. Look for a Revival Platform. Place it. Demolish it. Easy 10 poly, 100 metal ingots, 25 crystal, and about 13 electronics.
A few ways I know of getting a bunch of this include going to drops that are yellow or above and taking the stuff made at a fabricator and grind it or you can take an anky mine some obsidian rocks and take a megatherium to a cave with a bunch of bugs and than use a doedicurus to get a bunch of stone or you could kill a bunch of titanyroma drones and soldiers with a frog