Singed vs Yone

Cast Mega Adhesive (W) behind you, then Fling (E): a target flung into the glue is rooted there.

Cast Mega Adhesive (W) under an enemy who has a dash: in the glue, they're slowed and grounded, so they can't dash.

Circle around enemies with Poison Trail (Q) on: every enemy following you walks through the poison, which damages them every second.

Drink Insanity Potion (R) before you dive: you gain power, resistances and speed, and your trail applies Grievous Wounds, which reduces their healing.

In a side lane, draw several enemies into chasing you: they walk through Poison Trail (Q), and that's that many players missing from objectives.

Get out of his line after two Mortal Steel (Q) hits: the next one makes him dash forward and knocks the enemies hit into the air.

During Soul Unbound (E), avoid taking hits: when he snaps back, part of all the damage he dealt you is repeated.

If you have ground-targeted CC, place it on the body he left behind: when Soul Unbound (E) ends, he has to return there.

Judge his threat by his crit items more than his level: Way of the Hunter (passive) raises his critical strike chance, so each crit item does more for him.

In teamfights, don't line up with your allies in front of him: Fate Sealed (R) hits every enemy in a line and knocks them into the air toward him.