Porthaw, the presence (name doesn't matter)
Me and my friends came up with this idea pre-Bard. We thought of this as a support, with a relatively lack luster minus the ultimate.
Passive: Standing still for more than 3 seconds slowly increases movement speed, up to 100% after 10 seconds. So 10% a second, with all damage immediately losing the speed and disabling it for 5 seconds. If an ally is near them when they start moving, they are given a buff inverted to their current health % (Example: 100% health 0% bonus movement speed, 50% health 50% bonus movement speed.)
Q: Targetted damage ability that deals 100/150/200/250/300 damage and knocks them either toward or away from you. This is dependent on the direction they are facing, with enemies facing towards being knocked back and enemies facing away being knocked toward 100 units 5 second cooldown Mana cost 50/55/60/65/70
W: Gives a 150/175/200/225/300 shield for 6 seconds, after the 6 seconds the shield becomes there health, healing them for the remainder of the shield 15/14/13/12/11 second cooldown 70/80/90/100/110
E: Launches a 200 unit wide wall at target direction, rotating once every 500 units, going 1000 units. Dealing 100/125/150/175/200 hitting up to 2 times, pushing enemies with it's movement. If it touches both an ally and enemy champion in .25 seconds, it knocks then enemy champion away and gives a 30/40/50/60/70 movement speed buff to the allied champion for 5 seconds (That is intended to be base not percent)
R: Porthaw becomes pacified (like Kalista ultimate) and gives the target champion 50%/60%/70% of Porthaw's health, armor, magic resist. and health regen. If the target champion dies, Porthaw attaches to the killer for the rest of the 5/10/15 seconds duration. Porthaw then removes half of the percent of the enemy champion's armor/magic resistance/ and health regen. The opposite also occurs if the enemy champion dies. After the ultimate, Porthaw reappears next to the champion (or where the champion was) and heals them for 500/750/1000 health. 90 second cd 100 mana cost
Lore: Porthaw is watching everything, making small changes to prevent potential apocalypses and undesirable events. List of several events
Saved
during the famous encounter with
Prevented
from rescuing Senna, which causes unintended events and the Spirit revolution
Helped in several of Ionia's successes in the Noxian invasion
And finally keeps all parts of Runeterra separate to prevent the annexation of it's diversity to defend against the void.
Can be developed further if there is need for more development
(Would draw but I am awful at drawing)
Edit: Replaced broke ult with another ability and buffed the rest of the kit