I recommend you use a paracer with at least 5000 hps, 200 movement speed,and at least 600 stamina to outrun the rock or rubble elimental. Use a platform saddle on the paracer or this strat won't work.With 3 cannons on the back of the platform and a crap ton of cannonballs in a chest next to them agro the golem.while it chases you have a second player fireing the cannons(a bed may be useful) you can tell it's about to k.o. Once it starts to crack
It's a bit silly that kibble tames it a lot better than rocks or sulfur because even in the dossier it says that it lives off of absorbing nearby rocks and minerals. So mabey they should make it so you have to feed them a rare mineral like obsidian what if they made it so you could tame one fast and with high effectiveness by giving one a few hundred or few thousand obsidian . or what if there kibble was made out of a combination of ores and minerals .