5. Mezlan - Pathfinder, PF2E
This thing is sick as hell and maybe my all-time favorite creature on this entire list. I try not to give my own opinion on most of these creatures for fear that my evershifting level of hyperfixation won't let me describe it enough to warrant such praise but ah well. You'll just have to take my word for it even if I don't do enough to give it the limelight.
My initial thoughts on the Mezlan were pretty poor, as in the first cursory readings of any bestiary the image carries a lot of the weight and I just didn't really get captured by an ooze that just looks like a person. I kinda just assumed that it would be some sort of shapeshifting ooze, which there are a few of now. Admittedly all the shapeshifting ooze are pretty cool but as a base concept I would need more than that in order to peak my interest.
The Mezlan were built as the ultimate warriors of a bygone empire. Their bodies have resisted the passage of time by being bioengineered under severe conditions. This has turned them into amorphous beings, capability of reconstituting even after the most destructive circumstances. Even when 'killed' with acid, further significant energy damage must be applied to them or they will return over the process of several years.
This has ensured that they are the perfect long-term assailants for high priority assignments in planar and empirical schemes. As they have outlived there own empires, they are excellent tools for those that can acquire their services. However, it may be that a Mezlan requires a great deal more than money to assuage its tastes. Each of the ones that exist gave up their lives completely willingly to a life of constant militarism. Only those who hold a true ideology for their now eradicated nations would have ever committed themselves to this, although it is unclear if they knew just how well the experiments would take.
This is one of few creatures built off of standard humanoids where the system more prefers militant and martial entities over casters, although a few of the latter also exist. Personally, I like the rare opportunity this lends towards for the more grizzled psyche of a war veteran and would lean towards using martials myself.
I know this doesn't really sound as exciting when compared to ooze that can control all the weapons of a space ship or plant that can slowly take over a city by cloning the populace as we've covered in the last two days, but there is something about the Mezlan that lends it as a really good long-term antagonist to players. It can meet them on every human level because in many ways it is a humanoid, just with thousands of more years of experience, honed skill, and knowledge to back it up. That calls to me to build a specific personality around so much more than many creatures and in fact, while many of these entries give me inspiration for enemies down the line, this is one of the few where I am actively building an entity off of at this moment. Hopefully, others will understand the allure of it.


















