Well since his main power is to be invisible and he WAS invisible, he wouldn't be seen, and honestly how can you go into someone's mind of which you've never seen in person or know where they are?
because a telepath doesnt need to SEE their foe to know where they are. even though Ethan is cloaked from SIGHT he is still physically in the room. he cannot phase, nor can he teleport, nor can he alter his "speed", so there ARE ways to detect him and deal with him.
a telepath on the level of Malice ...or to put it in MARVEL terms since this game is primarily based on Marvel ideas...Xavier, The White Queen or Psylocke could lock onto ANY mental signature that they needed to. the ONLY exceptions were: alien life forms, mystics with psi screens, pure techno organic beings, spirit forms.
Telepaths don't need to SEE their foes in order to lock onto them, nor does a Precog need to SEE someone in order to know they are coming. I'm being GENEROUS with Alison for the sake of the game because in THEORY, she could simply anticipate ALL of his moves and compensate accordingly.
your character's power is just about a CARBON COPY of Invisible Woman from Marvel Universe, DONT think i didnt notice that Brandon. If you want to pattern after her, that's fine but that means your character will have just about the same weakness she does. just because ethan can cloak his BODY from sight doesnt mean he can cloak his MIND from a telepath. he's not a mystic so he doesnt have a psi screen so don't try to make a variant of it.
Invisible Woman's power (like Ethan's according to the language you used in the bio) is PSIONICALLY activated and that means Ethan is vulnerable to the SAME sorts of things anyone else whose power is psionic in nature would be and this can include: sonic/gas attacks, anything that would provide suitable distraction to break concentration, being rendered unconscious or attacked by a telepath in any number of ways. In addition to that it has been shown that certain types of energies can pass through the molecular structure of Invisible Woman's forcefields and hit her ANYWAY so while Ethan may have the same powers he does...that means he's gonna have the same weaknesses.
psionic based powers have another disadvantage in that they are only going to be as strong as the WILL of the person using them. Invisible Woman has risked serious permanent injury trying to sustain certain invisible force fields/constructs that strained her to her mental and physical limits. Further more...if Invisible Woman's forcefields are STRUCK with enough physical force, the psionic backlash has been shown to cause her to BLACK OUT from the pain and in some EXTREME cases causing the forcefield to shatter. (witness her battle with Dr. Doom when he possesed the power of a Watcher, or her attempt to shield The Thing from being beaten to death by the Hulk)
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on another unrelated note:
per my discussion with Garrick, I'll be editing rampage's power description to fit the outline we came to together. it will further alleviate the problems we've been having of "overlapping" power signatures as of late.