It's clear to anyone who's played D&D that many "Threatening" monsters aren't. So, in the spirit of the "What can we do with..." thread, I wanted to see what we could do to make "Threatening" monsters, well, threatening.
The most obvious example is Big T, but I think he's been both done to death, and had a perfect fix done
here.
The next most egregious example is the
Inevitables, or at least the strong ones. Robocop is cool, but this was an immense failure. The Marut is supposed to deal with things that thwart death, or basically casters strong enough to do massive-scale raise dead, Reincarnation-abusing Druids, Liches, and so on. The Marut has some nifty abilities and a decent stat-line, but those saves alone make its job impossible, and it has nowhere near the offensive abilities to make up for it.
An even worse example is the Varakhut, which is supposed to protect and avenge GODS. Like, you know, CR 40+ monstrousities with absurd SDAs. At CR19. Its abilities make it a pretty nasty encounter, yes, at, you know, level 19. With its Wish ability, within a week of Wish abuse, even ignoring Wish-looping, it can have answers to most of your abilities, tailor its feats, and turn itself into a caster with Scrolls/Wands, but there is no way in hell it can deal with an epic character.
The Quarut is almost as bad. It can in no way deal with a character that can cast 9s, the minimum level for time travel, or anything abusing the Save Game trick.
So, using real methods(Classes/feat optimization/templates, and tactics to make the most of its abilities, not Homebrew), how do we make threatening enemies, you know, threatening. Starting with Inevitables.
For the Inevitables, an obvious and good start is Magic in the Blood. Limited Wish, Time Stop, Force Cage, Plane Shift, and Teleport all 3/day enable the Quarut to hit-and-run, gank, and throw out some serious firepower, due to the free Metamagics on Limited Wish. Quicken SLA would also help. This applies to all of the Inevitables, really. This still can't salvage any of them, though, so we need more. Thoughts?
Remember, the intent isn't to make them stupidly overpowered, it's to boost them into being credible threats, either for their CR or fluff.
Finally, any suggestions for the next fixer-upper?