Meta-Memory

All sorcerers forgo safety, and good common sense, to weave their strange magics. 

But some take it a step further, daring to call forth magical effects from the hazy fog of memory.

As an action , the user may cast any one cantrip that they have a living memory of seeing performed. The user need not know the name of the spell. Regardless of whether or not the spell is successful or effective, the caster takes psychic damage until they are reduced to one hit point.  (2/Long Rest)

This damage can only be healed with a rest. 

"Trust me, this'll be great! I saw it at the carnival once. Also might kill me, but that's neither here nor there." 

 - Lorthander Stirrup , fool-hardy halfling sorcerer.