I have two tactics, but this one is what I'll put up first.
----------------------One Hour Prep----------------------------------
Conjures the EOA to go on his forehead. ET=30 seconds
Turns into Iron. ET=Instantaneous
Conjures his shields. ET-Instant
Conjures his Astral Ring. ET-Few seconds.
Conjures his illusions........I here recently read in DS# 42 where Strange conjured 1000 of them in a split second(I have scans, if you need them.).
Very nice. 1000 it is. ET=Instant
Conjures again the Crystal of Cyttorak around his body, goes to Astral Form. ET=1minute
To add further protection the time compression spell is caste around the area of the Crystal. ET=1minute
(Basically, if the hammer is thrown at or if Flash Thordon decides to ram the Crystal, he's/it's gonna get stuck in time compression. )
Casts invisibility spell over the Crystal. ET=Few seconds.
--------------------------End of Prep------------------------------------
----------------------------Stratagem-----------------------------------
As soon as the bell rings, I send my illusions to rush forth as hard as they possibly can. I'm going to go after Flash Thordon's weakest point, his mind.
Quasar's mind is all but normal human, he can try to put up quantum barriers in his mind all he wants, but just like magic passes through his quantum shields, magical telepathy will pass through his quantum barriers.
Only high level mystics and high level Psi's can see the Astral form(and even then they might not be able to if the Astral form wills itself invisible), Quasar is neither.
All the illusions will be going at him with their own small amount of telepathy, not enough to actually hurt him, but to chip away at his concentration enough for me to break out my spells and my own personal telepathy attacks backed by the Eye of Agamotto.
The first spell that goes against him is the spell of confusion and forgetfulness. (Yes, Mjolnir can absorb magical blasts, but he's never been able to absorb spells.)
Seeing Quasar's mind isn't very strong, those spells will work on him as they would a normal human.
As the spell starts working it's magic, Thordon will lose more and more concentration....wondering just exactly what he's doing here.....
I'd be surprised if Thordon is still holding his hammer at this point.
If he isn't holding his hammer, he's going to be blasted to hell and back with magical blasts that have taken out 2 of the top 10 most powerful beings in all creation.
If he still has his hammer.....I won't blast him yet.
The second spell is Mists of Munnopor, it basically a mist that instantly appears around the victim's face poisoning the air they breath(Yes, Thor breaths, as does Odin who was taken down by a similar spell.)
When he finally starts to loose consciousness and fall under the spell of total and utter confusion and forgetfulness and poison, I undo my spell of the Crystal and use them instead as the bands of Cyttorak which will hold Thordon completely and utterly helpless. I also undo my time compression spell and turn it upon Thordon to keep him from struggling, if any, he may do.
Again I go for the incapacitation win.
Short and sweet.
Basically one of the only two ways to totally dominate Thordon without the fear of being harmed myself.