Larva, The Parasite Queen (Swarm champion)
(Swarm) Passive: For each ally in Larva's vicinity grants her and her Host's additional movement speed and health regeneration. 1%/1.5%/2% movement speed and 2/3/4 health per 5. Max stacks = 8~10. Allied champions receive half of this bonus.
(Leech) Q: Larva lashes out a vein/tail/link thing that attaches to the first target it hits. Once attached, Larva begins draining their health dealing % current health in magic damage. Larva heals %75 of all damage dealt. The bond cannot be broken until target walks out of range (which i figured should be a little less than blitz pull)
(Exo-Skeleton) W: Larva gains bonus armor and magic resist for a short period (4 secs). 33% of all physical damage dealt to her is returned to the attacker. Larva's Hosts receive 2 hit bars as a shield.
(Fly Trap) E: Larva sets a trap in the soil. The next enemy to walk over it is consumed in flesh eating bugs that deal physical damage over time. If the enemy dies, whether champion, minions, or monster, the bugs take over the body as the Host. All Hosts only have melee basic attacks. They each have 3 hit bars of health (much like a ward). I believe the cooldown on this should be relatively low giving Larva the chance to create swarms for her passive. Maybe like 4 or 5 secs.
(Sinkhole) R: Larva commands her colony of bugs to move to a certain point. As they rush to the center from all directions enemies in the circle take physical damage over time, if they run against the current they become heavily slowed (%50), running anywhere other than directly away from the center will be futile you will be pulled to the center slowly and if you become stunned or stop moving you fall directly into the middle. There is no extra bonus about getting in the middle it just huddles the enemy team closer together and they take the full scale damage of the ult.
Let me know if you guys like it! Just somes I came up with while at work!