Pff elise sucks, she gets the same damage on attack through AP as Teemo does (adding spiders and darts dot), is just as squishy as he is, with out the benefit of an escape mech, ranged sustained damage, disable that you can actually use while fighting (her human E will be gone by the time you are on them as a spider), being melee instead of range, no move speed bonus, and cant build for sustain since she needs to build life. So basically she is worst of than teemo on basically the same mechanics, she has some burst but if you can live through it (which is not all that hard) she is toasted.