Extremetion

Creatures of unknown origin are "etching" their way into your world, but with them comes powerful weaponry.

Find Etched Portal Blocks underground and mine them with silk touch to be able to make the portal to the Channel.

Using the Not Enough Items mod would be wise to be able to easily access the recipes, but otherwise you have to figure it out. I may make a showcase video at some point showing everything.

All the tools are crafted as they normally would be, except that they use etched sticks instead of regular ones.