Anivia vs Irelia

Recast Flash Frost (Q) when the orb reaches your target: it explodes at once and stuns, without waiting for the end of its range.

Cast Frostbite (E) right after Flash Frost (Q), or inside a fully formed Glacial Storm (R): against a chilled target, its damage doubles.

Place Crystallize (W) behind a fleeing enemy: the ice wall blocks the path before it melts.

Play more aggressively when Rebirth (passive) is available: instead of dying, you turn into an egg, and if it isn't destroyed, you come back at full health.

Don't stand near your low-health minions: Bladesurge (Q) resets when it kills, so she chains dashes from minion to minion until she reaches you.

As soon as the first blade of Flawless Duet (E) lands, change direction: the stun only hits enemies caught between the two blades.

Take your trades when Ionian Fervor (passive) isn't stacked: she builds stacks with her abilities, and at max stacks her autos deal more damage.

Save your burst for after Defiant Dance (W): while charging, she takes much less damage, but she can't do anything else.

Dodge Vanguard's Edge (R): its blades make you Unsteady, which resets Bladesurge (Q) on you, and the cage they form damages and slows anyone who crosses it.