Keep Prance alive between camps and take a lap before cashing R: outer Q or E should paint the fight first, then the sleep sets up the center W that actually pays you, which is why panic-ulting the first tag or raw-casting W makes Lillia feel much worse than she is
Route your first clear toward the lane that can actually hold an E slow or give you runway, and if that lane does not exist, finish the clear instead of forcing Elise-style ganks; Lillia’s early games stay much more salvageable when she keeps farm and arrives to later fights on time, even from ugly 10-minute gold states
Good Lillia fights usually start by burning the front body, not by diving past it—the first touch is the wick, and once passive is spread and people have had to walk through your ring twice, backline access and multi-man sleep become much easier to cash
Start the fight later than you want to. Clear one more camp if you can still arrive on time, keep Prance up on the way in, and look for the first body that has already committed into the river mouth rather than trying to sprint past them. Throw E early if it will slow the approach, then orbit the edge until you can tag at least one more target or catch the diver who enters first. Your job is usually to turn their commit into a sleep your team can hit, not to be the champion face-checking the pit or forcing a blind steal angle.
Hitting a champion or monster with a skill will deal additional max Health damage over time.
Passively, Lillia gains stacking Move Speed when hitting enemies with spells. She can activate this to deal magic damage to nearby enemies, dealing extra true damage on the edge.
Lillia deals damage in a nearby area, dealing heavy damage in the center.
Lillia hurls a seed that damages and slows those it lands on. If it doesn't hit anything, it will continue rolling until it hits a wall or target.
Lillia causes all enemies with Dream Dust on them to become Drowsy before falling asleep. Those enemies will take extra damage on being forcibly woken up.