Funny cc go brr
Bases off of the ability to fear a group of enemies at once
W>Q>E
Use Q/R + E to fear the enemy, allow for the team to deal extra damage from evenshroud.
Tank stuff
Don't die

W first to be able to roam and help teammates. Q next to be able to deal some amount of damage.

Ignite for usual support
Exhaust to be able to get the early kills off with fear

Starting with the ad support item instead of ap is likely more useful in most situations. Warwick's Passive and Q both scale with ap and deal magic damage, so does his R. But, it only scales off of ad. dunno about spectral sickle, does more damage but you gain less health.

Evenshroud to increase the damage from teammates while they're feared.
Titanic for stonks on health.
Fimbulwinter due to mana problems and an increase in health.
Either or on Spirit Visage and Thornmail. Use whatever's best.

Boots are entirely up to you. Swiftness recommended to be able to fear the enemy. Mobi boots if you're gonna go river warwick and just roam across to topside to cheese the 5/12 shen. Defensive if you're having a hard time staying alive.

This is all untested. I take no responsibility for your failure to support your team as a troll pick support.