Irelia Baron Lane

Casting Bladesurge (1st) primes Spellblade before the dash deals damage, and Q (1st) applies on-hit effects, so the Bladesurge (1st) hit itself can consume the proc. Her passive attack speed then supports the attacks between resets.

Her Q (1st) applies on-hit, so the percent current health damage lands on every reset she chains.

Health, attack damage and move speed, with every fourth attack landing heavy on a champion or a structure. The armor and magic resist go to her nearby siege and super minions, so the side wave keeps rolling into a duel her resets and wall already make hard to lose.

Spreads burst damage out over a few seconds, which gives her Q (1st) healing time to catch up in a fight she committed to.

Stacking penetration and resistances the longer she attacks, which suits a passive that rewards her for not stopping.

Build this into heavy magic damage. Irelia applies the on-hit damage rapidly after stacking her passive, while its Tenacity helps maintain attack uptime through reducible crowd control.

Revives her once after dying. Her ultimate commits her to the middle of a fight, so this is what makes that worth doing.

Build this when crowd control catches her with nothing to dash to, which is her only real vulnerability.

Build this when you are fighting in the middle of the enemy team and need both armor and magic resist. Irelia's dash resets keep her in combat long enough to activate Twinguard after the first defensive dance ends.

Boot swap against heavy magic damage and crowd control, which is what stops her before her resets get going.

Boot swap against heavy physical damage. The armor covers Irelia while she dashes through the wave and waits for Defiant Dance (2nd) or another reset.

Replace Hullbreaker when Irelia must survive the first focus while setting up her next reset. Health, permanent Tenacity, and a bonus-Health Lifeline shield help you survive the return damage. Choose this or Maw of Malmortius for your Lifeline slot.

Replace Hullbreaker when Irelia can attack several champions in a skirmish and needs healing during the commitment. The first attack against each champion delivers an empowered hit and a heal, with a separate cooldown per target.

Replace Death's Dance when sustained magic damage threatens Irelia through her repeated dashes. Repeated champion magic damage stacks extra Magic Resistance and movement speed, making it a sustained-magic-damage answer.

Replace Death's Dance when fed crit attackers decide the melee fight before Irelia can finish them. Reduces physical critical-strike damage, so prioritize it against fed crit carries rather than purely on-hit damage.

Replace Death's Dance when physical sustain opponents force Irelia to supply anti-heal as well as Armor. Armor and Grievous Wounds answer healing physical attackers. Your own damage also applies anti-heal, so you do not need to wait for them to attack you.