Automatically hitting for 1d4+1 a round is overpowered?
Mildly annoying someone is overpowered...
I don't understand.
Wizards are supposed to be powerful. These are people who learn to bend reality to their will - the idea of "balance" for such beings in an advanced state of their careers in comparison to mouth-breathers that swing around bits of metal, is insane.
Crawling through early to mid levels of ferocious monsters trying to flay you alive when you're wearing nothing but a toga and possess the woeful fortitude of a domesticated cat, deserves a suitable reward. Compound that with the theme of Wizards being people who warp the fabric of space and time, and I balk at the idea that auto-hitting with the equivalent of a few knife-stabs from strength 13 is somehow overpowered.
I'm sorry sir, but I must disagree. Then again I haven't play-tested, so I'll go back to the shadows.