There is no way this was done in 1.12 . I fought the same spider im a level higher then you. Have on all greens ( no whites or greys) running BM for most dps. And that spider in stonetalon from your video kills your pet VERY FAST then if its hits you its over in one or two hits… So this guide is great and all but it totally needs reworked for 1.12 or classic. Im using vanilla guide so if you make an in game guide i will say this It needs to have checkpoints and way points to each quest turn in and pick up. every so many steps it should have reminders and check how many levels or bars into a level you are. And QOL reminders along the way. It should also be broken into sections based on class.