Forgotten Relics was on wctm, and overall its underrated mod, which i dont see much elsewhere. Forgotten Relics is an addon for thaumcraft and botania, which has secret thaumcraft researchs and recipes, which you unlock by proceeding in the 2 mods, and scanning items and discovering them. The "relics" are powerful and useful items, most of them being baubles, and every one of them having unique effects, and them being balanced, most of them add with good effects and things, some negative ones, or something which doesnt make them OP. Its on my opinion under rated, but its really great and fun mod, and would be a good addon for thaumcraft and botania, to be added to mythic. Also with that, it doesnt add any world generation loot or such, so it can be added even if the world/server is old, without a restart.