She is an AP Tanky champion and has a preety good jungle clear.If you see her passive you will notice when in Spider form her AA gave her life,just think of the attack speed and the ap you will have with the devourer and the other items!!!

When jungling you start with Q. First as your Human form you Q the Gromp and then Q with Spider and immidietly smite to get poison armor.When you lvl 2 you upgrade your W change to Elise form and Q Blue Buff W and then you change back to spider form.And thats it about jungling.
Now the ganks you can do with(you start with Human Form) Elise,you try to dodge the minion FOV(Field Of Vision)then you stun him with your E.you throw at him your W then Q then simte him if you have the Stalkers Blade to get the slow and change to your spider form you pres E you land on him W and then Q