@Ricsi-viragosi: "The age manip gets around immortality (Vampires, zombies, etc.), but it cannot do anything more than put the enemy seconds before they die of old age (or an infant too), which type 1 would still counter. "
Do you mean Type 1 counters reduction of age, or just attempts to kill via old age?
Also, summons/created Sims get outsped? But wouldn't Speed Equalization apply to them? Or just to the Watcher? Also, while they would be outclassed on their own, isn't it possible The Watcher would have means of distracting them while the summon tries to transmute Strange?
How many Sims could they control while trying to deal with Strange, if it's even more than 1 at all?
In any case, if the Watcher COULD turn Strange into a heavily diseased, physically crippled baby, Strange could have a lot of difficulty casting, his immune system would be pathetic, & it would be really rough on his stamina.
Supposing both resort to Time Stop, but The Watcher is immune due to being outside of time, then The Watcher, after realizing they can't Mind Control Strange would be faced with someone they can't make into a new Sim, but still want to kill, or otherwise defeat.
So I'm assuming that they'd resort to Time Stop, assuming it actually stops Strange, & begin testing out typical ways of getting him.
Unfortunately, I'd assume stuff like drowning strange in a pool, sealing him in a room with no exits, throwing him into space or dropping him into a volcano wouldn't work because they probably require flowing time to do so, can't get past Strange's durability, & once time IS flowing, he can fly, teleport or portal or WHATEVER out of there.
Similarly, the kill-by-disease approach seems like an option... but time needs to flow for the disease to advance.
What can Strange do about disease if & when he realizes he's been de-aged? Can The Watcher break his arms? Make him a quadruplegic? What diseases can they inflict?
Mind Manipulation almost certainly isn't going to work, meaning Strange probably will have his knowledge. The Watcher can't take that chance at least, & would HAVE to ENSURE Strange can't cast spells, but they seem to lack means of incapacitating him.
The reason crippling him so bad is necessary is to prevent Strange healing himself or stopping the Watcher once time resumes so the disease(s) can progress. What can Strange do to fight this, once the Watcher trial-&-errors its way to knowing to do this, thanks to the power of being above time & able to stop time?