Which fomulation of stainless steel?
Unless it has chromium in the formula (which would make it hard and brittle, btw), nitric acid will eat it like candy. Most stainless is made from a mixture of iron, carbon, copper, silicon nickel and vanadium. Some contain exotic metals, like titanium, magnesium, tungsten, chromium, etc... depending on how that steel will be used. Given the materials available, I doubt that Mr Happyface will be creating exotic steels without wierd's help in isolating highly reactive transition metals that are rare, like vanadium, chromium and pals.
The major components being iron and copper in the more comon structural stainless steels.
Nitric acid aboslutely fucking *LOVES* copper, (check youtube!) And iron falls pretty hard too. With most of the alloy structure being attacked, the cyber dwarf armor will turn into corroded black slush in seconds.
Let's put it this way.... you can't even store concentrated nitric acid in plstic. It *MUST* be stored in glass or ceramic. Its just that hungry of an acid. Its one of the 3 indespensible strong lab acids. That's why he was brewing it up.
ZTG: weird is an enigmatic character in many respcts. A total hardass in some ways, and a total softie in others. He doesn't like putting other living things in harms way, but has not such reservations about the unliving, or about parts of himself. If he were to practice summoning of any form, it would be a dangerous and self-destructive form of conjuration that summons parts of the caster's own mind, and wraps it up in enough meta-essense to give it form. Being an extension of his own will, he would have no problem summoning it or putting it into battle. A totally unique living thing? Never. Abhorrent.
If it helps: imagine captain planet. Ok, now reverse what the rings do. captain planet breaks apart to make the planeteers. Not the other way around. Weird would create and foster a kind of limited MPD to create his summonings, and they would be completely unique to him. If such a school of magic didn't exist, he would create it out of disgust.
As such, his "ultimate" summoning would be fatal. That's the kind of personality he has.