Well three options I can see:
1) fake a brutal power with the help of a dumb friend (bet you all have one in mind already) and display this power publically so nobody will want to mess with you (i.e. strap him with an explosive vest, point, bang, shout 'WHO ELSE WANTS TO FEEL MY WRATH!')
2) get some serious Derren Brown training and try to feign telepathic powers, maybe take advantage of the 'collect secret identities' idea previous.
or (my personal choice) 3) get a qualification in building renovation and repair, coz people are gonna fight and buildings are gonna the brunt of it. I'd make a fortune