
I'd personally say having the sheer power to overwrite reality like Alex did would definitely leave trace residuals enough to Trance, but anyone seeking to Trance Alexander would need the following pre-requisites:
1) Be aware Alexander existed in the first place. (Obviously)
2) Have sufficient Summoning knowledge to know of Trance. (Again, obviously)
3) Have the ability to identify and sift through "Alexander" tainted aether.
And even then, that's just to have a chance at possibly learning how to Trance Alexander.
You'd have a better chance to cast Enkidu-Egi than that.
Actually, wait, no. You'd have a better chance of Trancing the Warring Triad AT THE SAME TIME than Trancing Alex.
At least until the next expansion where we find out the rewriting of reality Alex did also means that every summoner can do it because technically every summoner was touched with the reality-warp.
1) Be aware Alexander existed in the first place. (Obviously)
2) Have sufficient Summoning knowledge to know of Trance. (Again, obviously)
3) Have the ability to identify and sift through "Alexander" tainted aether.
And even then, that's just to have a chance at possibly learning how to Trance Alexander.
You'd have a better chance to cast Enkidu-Egi than that.
Actually, wait, no. You'd have a better chance of Trancing the Warring Triad AT THE SAME TIME than Trancing Alex.
At least until the next expansion where we find out the rewriting of reality Alex did also means that every summoner can do it because technically every summoner was touched with the reality-warp.