Irelia vs Jayce Counter Pick

65.8% in Irelia’s favour is a strong figure, and 149 games on patch 16.13.1 is a modest sample, so the read is directional rather than settled — but the mechanics behind it are not subtle.

• Body size. Jayce carries 590 health and 22 armour at level one, among the softest defensive lines a melee fighter meets in the mid lane, and 107 armour at level 18 against 115.9.
• Stance friction. Mercury Cannon and Mercury Hammer amount to two kits, rated 7 for difficulty; holding the wrong one when Bladesurge lands costs the entire trade. Irelia is rated 5.
• Range swing. Cannon form pokes from well beyond her 200, while Hammer form drops to 125 — closer than her own reach.

Hextech Capacitor grants move speed on every weapon swap, and both champions run 335 base, which makes disengaging possible but never comfortable once Ionian Fervor is stacking attack speed. Flawless Duet is the equaliser, since a stun between two converging blades ignores whichever stance he is holding, and Vanguard’s Edge blocks the retreat afterwards. Irelia also wins attrition, reaching 2,585 health to his 2,443 while healing on each Bladesurge that connects. His escape route is Thundering Blow, a knockback in Hammer form, followed by Acceleration Gate for the retreat, and both are on the wrong weapon at the moment she arrives — the whole reason a 65.8% figure attaches to a champion whose 149 recorded games span two entirely different builds.