Have you ever felt powerless and weak when met with your friend's newest favorite superpower mod? No? Because I sure have.
INTRODUCING MY COUNTER-POWER: ICHOR

By simply crafting and using this new item, you will gain many new abilities (as long as you've got the xp to unlock them that is). These abilities are strong, but they'll cost you. This new power comes with resource management, and it won't recharge for you. If you wanna go blasting people with lasers, you'll have to work for it by converting and absorbing blocks with your first ability (which is unlocked with 5 xp levels).
Despite the annoyance of managing your ichor, the abilities are pretty overpowered, so you might not want certain people getting their hands on them. If this happens, you can simply remove their powers with an Ichor Cleanser.

Use this on someone and their ichor will instantly be removed, likely along with their life as they swiftly disintegrate.
Aside from the whole superpower counter, this could also work just as well as a counter to infection mods, since a big part of your abilities is based around converting and absorbing the blocks around you. You don't have to do that, though, you can just have fun with it however you like... even though this mod kinda sucks in my opinion.
Yeah, have fun, and get to assimilating!