Elderwood Lissandra
Poor Liss only has two skins, so imagine this as another potential skin:
Lissandra's is a wooden, tree-like forest creature that moves around on top of rising bamboo shoots (instead of usual icicles).
Her q shoots a tree limb at the first enemy, which breaks apart into individual leaves to do it's aoe damage.
Her w causes roots to come up out of the ground and lock down nearby enemies.
Her e is a fallen tree moving above the ground, which collapses to teleport the tree witch.
Finally, her ult encases Lissandra or any enemy in a giant elderwood tree.
Would like to here thoughts on improvements, thanks!