Lillia

Her passive (Dream-Laden Bough) applies a DoT that stacks movement speed — hit as many targets as possible to run faster and faster.

The outer edge of Q (Blooming Blows) deals bonus damage — hit enemies with the edge, not the center.

R (Lilting Lullaby) puts ALL enemies affected by your passive to sleep — hit as many as possible with QWE before pressing R for a mass sleep.

Lillia is very fast: use your speed to kite bruisers and dodge skillshots while poking with Q.

Spread out to avoid a mass sleep with her R — she needs to hit multiple targets for a good R.

Her Q edge is predictable: walk into her body or back away far to avoid the sweet spot.

Lillia is very squishy despite her speed — a single hard CC kills her instantly if she can't escape.

Vision is important: her E (seed) travels across the map and applies the passive for a surprise R.