Best lv18 teamfighter
- Not squishy
- Sustained dps and burst
- Some mobility



Core items make him not squishy. But does not satisfy criteria 3.
Brand falls off late

Wait...
You want a good teamfighter that has DPS and burst with high mobility and not squishy?
Jesus you want the all in one package dont you?
The closest champion that comes to that is probably
. His DPS is not insane but his mobility is insane, his burst has the potential to be insane, and he has the potential to be a great teamfighter as well and can be built tanky.
https://www.youtube.com/watch?v=Uh1XCdSc2Ys
Lee sin can be great at lvl 18 because of his ultimate, however, it all depends on how good the player is.
The last champion that fits your criteria is
, however, just like lee sin, she is hard to play and has a very high skill ceiling.
