ok but who asked

OK SO LE IDIOT IS A SEMIPARASITE WHILE MOST OF THE TIME HE JUST KILLS THE THING, SOMETIMES HE ENTERS THE HOST'S BODY AND DOES 1 OF 3 THINGS 1, EATS THEM FROM THE INSIDE OUT, NOT AFTER CONTROLLING THEM FOR A BIT, 2, MAKE THEM COMMIT LEGO STEP, OR 3, CONVERT THEM INTO A VOID THING