Champ Idea

So, I was lying in bed the other night, and had an idea. An ethereal champ support who is only half in this plane. I had a few core concepts, but would love to hear where you guys go with this. This is designed to be a utility support

Passive-1/2 since he is only half here, he only does half damage, and takes half damage

Q--Muck-you turn into a puddle of muck (think Vlad's Sanguine Pool) you turn into a puddle of muck as long as you are under the enemies feet they are slowed (fill in fair numbers) and you take ?% of remaining health damage per enemy on the muck

W-Mold-You mold yourself to another champ giving a boost to you team mates or a debuff to enemy champ

  Friendly-give adaptive damage or armor/MR-whichever would benefit the most 

  Enemy-takes away the same type of stats from molded enemy

E-Replicate-if molded to a champ (friendly or enemy) can active to make himself a copy of this champ (passive applies to make him 1/2 strength) can recast to turn back into himself does not persist through death *this ability probably need a passive to go along with it

R-Pass Through-has to be molded to use

 Friendly-for a short time all abilities will pass through them, making them invulnerable 
 Enemy-if molded to an enemy will draw in their team spell for a short amount of time they will pass through him and apply them to molded enemy at 1/2 strength

I know there is still a lot of work here, but I was wondering if you guys think there is something here.