Maximum CDR teamfight engages with [R].
Durability and crowd control
After immobilizing an enemy champion gain defenses and later deal a burst of adaptive damage around you.
Impairing the movement of an enemy champion marks them. Your allies heal when attacking champion's you've marked.
After 10 minutes gain 8 Armor and 8 Magic Resist and increase your total Armor and Magic Resist by 5%.
Every 8 monsters or enemy minions that die near you permanently increases your max health by 0.2%.
+65 health and +10 AP or 6 AD, adaptive
Gain cooldown reduction and max cooldown reduction on your ultimate. This is increased further each time you use your ultimate, up to a maximum.
Gain 10% CDR when you reach level 10. Excess CDR becomes AP or AD, Adaptive.
Aftershock on Ornn support is a fantastic tool for lane duels where you're able to get a 2-man knockup with [E] and stay on top of the carry.
The bonus resists allow you to take minimal damage and explosion helps secure the kill.
Ornn can quite easily apply Font to a large number of targets in teamfights with [Q], [E], and [R]. Stacking health will provide a lot of healing to teammates.
As a top laner you'll be building a lot of Armor and Magic Resist allowing granting Conditioning a lot of value in bonus resists.
Overgrowth's health scaling makes you a strong front-line tank when paired with health stacking items such as Knight's Vow and Targon's support item.
Ornn support's strongest tool is his ability to engage fights often with his [R]. The more your [R] is up the more opportunity you have to find openings for your team.
Transcendence allows you to hit 40% CDR in the mid-game with just your support item, Lucidity boots, and Knight's Vow, allowing for tons of CC and damage in mid-game teamfights.