Vex Support, patch 16.17. Below you'll find Vex's build, runes, toughest counters, strongest duos, and win conditions, every number measured from current-patch Emerald+ ranked games.
Vex is an AP mage in the support, and on patch 16.17 they grade out as an off-meta pick — a 46.8% win rate, 0.1% pick rate, 844 ranked games sampled. On the power curve, Vex spikes hardest in the mid game around the two-to-three-item mark — that is the window to force fights and objectives.
How Vex wins: grouped 5-v-5 teamfights, where Vex tips the fight, and sieging objectives and turrets with sustained pressure. The kit grades 8/10 teamfighting, 7/10 siege, 7/10 waveclear. Play around where Vex is thin, disengage and split-push (3/10, 2/10), and the enemy loses their angle.
The most-played core build is Zaz'Zak's Realmspike, Luden's Echo, Shadowflame, which holds a 40.8% win rate across 76 games this patch. Set the enemy team at the top of the page to see how the path shifts against that comp.
Vex's highest-volume core items and rune page this patch. Select the enemy composition above and the build re-optimizes for that exact matchup.
Champions whose presence raises Vex's win rate most as Support, by pair WR delta over Vex's solo performance.
Vex is also played in this other role this patch.
Take Vex into the Team Builder to plan around every pick, or check the Tier List to see exactly where Vex ranks this patch.