[Champion Concept] Sizzlebot (HP and healing based champ/ possible AD support)
Attack range: 435 (yes, he shoots syringes)
~~ ~~
Passive: Auto-repair Unit 27: increase your passive self-healing by 35%. Passive: Auto-repair Unit 28: whenever enemy champion is healed or heal himself via an ability, a summoner spell or a active item effect (life steal and spell vamp doesn't count), then you gain 20% bonus healing to all your healing abilities for 4 sec.
~~ ~~
Health Shot [q] On friendly target: heal for 50/75/100/125/150 (+15% of your bonus health) health (can't use on yourself). In addition, boost vital force of that target causing them to take 10% more healing from all sources. On enemy target: deal 70/85/100/115/130 (+5% of your max health) physical damage. In addition, inflict grievous wounds to targeted enemy for 2 sec. Cooldown: 12 sec Cost: 0 Range: 555
~~ ~~
Extra First Aid Kit [w] Throw a first aid kit on the ground. Other friendly champion can pick it up by clicking on it and be healed for 60/90/120/150/180 (+10% of your max health) health over 5 sec. However, kit can't be picked up for 1 sec after being placed. In addition, if enemy champion stand on it for 3 sec or more, then the kit will be destroyed. You can pick any kit up without consuming it and place it in another location (you can not heal yourself via first aid kits). Cooldown: 18 sec Cost: 0 Range: 360 Maximum number of kits at one time: 3
~~ ~~
Tranquilizer [e] Shoot a syringe and deal 50/70/90/110/130 magic damage to first enemy it hits. In addition, his/her movement speed will be slowed by
65%40% for 2 (+1 sec per 300 points of bonus health up to 6 bonus sec) sec. If affected enemy gets slowed by another movement slowing ability or effect, then consume this slowing effect and stun him/her for 1 sec. Cooldown: 14 sec Cost: 0 Range: 625
~~ ~~
Experimental Drugs [r] On friendly champion: give targeted friendly champion 20/30/40% bonus movement and attack speed for 4 sec (can't use on yourself). On enemy champion: reduce targeted enemy champion's armor, magic resist and attack speed by 20/25/30% for 4 sec. Cooldown: 90 sec Cost: 0 Range: 400
~~ ~~ Some build examples:


but other wise sizzlebot is the shizzlebot.