Tap Dancer

With Q active, each auto stacks multiple layers of Tap Dancer.

Xin is a physical bruiser, so Master of Duality's AD isn't wasted, plus his E, R, and passive heal scale heavily with AP. Stacking MoD gives huge AP, making heals absurd, and with tank items you sustain forever as long as you don't get one-shot. Stay alive and keep stacking via autos and abilities.

Build Ethereal Weapon before Dropkick — Dropkick first isn't great.

E's hit count isn't capped by Slow and Steady — attack-speed items give huge AD, and her passive AS also converts. Main E for damage. Time E around the AS lock; E and R do the heavy lifting.

Passive stacks benefit from Shrink Engine — late-game attack speed easily exceeds 6.0.

Trynd's Q has huge AP scaling (1.2x) plus heal scaling; Master of Duality's AP enables full-HP heals. Navori cuts Q CD — extreme survivability. Weave autos and abilities to constantly proc heals and keep MoD stacks up.

Forge: omnivamp > AS > armor pen > AD > MS.

Stack Heartsteel for infinite HP growth, then convert via Overlord's Bloodmail, Riftmaker, and Vlad's passive into AD and AP, paired with Adapt and Tank Engine for explosive stats — late, AP easily hits 10000. Requires Adapt + Heartsteel — don't play without them. Once online, with Bloodmail and Rabadon's, two empowered Q's delete a 10k-HP Mundo.

For backline picks — Black Cleaver opener.

Crit + on-hit endless E. Double Tap + Tap Dancer — once crit-capped, E stacks Tap Dancer; faster AS = more spins = infinite E. Add Slow and Steady AS-to-AD, throw in any lifesteal hex, you're invincible.

Best-feel build. Damage on open; buy Doran's Shield and Tear, then build in order.

Speed run build. 1.