Ekko vs Qiyana

Throw Timewinder (Q) at a champion, then position so the device passes through them again on its way back: it expands into a slowing field, and the return hits again.

Hit with Timewinder (Q) out and back, and weave in the empowered auto from Phase Dive (E): the third hit triggers Z-Drive Resonance (passive), with bonus damage and speed.

Cast Parallel Convergence (W) where the fight will happen, then step into the sphere when it appears: you stun the enemies inside and gain a shield.

Engage, deal your damage, then cast Chronobreak (R): you return to where you were 4 seconds earlier, in stasis, and recover health based on what you lost.

Before a trade, check her weapon's element: with Ice, Elemental Wrath (Q) roots you, and with Wild, the brush element, its trail makes her invisible.

Back off when she casts Terrashape (W): the spell resets Elemental Wrath (Q), so she can hit you twice in a row.

Don't fight right next to a wall, the river or brush: Supreme Display of Talent (R) explodes along them and stuns enemies there.