Viktor vs Lissandra

Poke with Hextech Ray (E), fired in the direction you choose: it hits every enemy in its line, and its upgrade adds an aftershock in its wake.

After Siphon Power (Q), land an auto within 4 seconds: it deals bonus magic damage, and the spell's shield covers you during the trade.

Place Gravity Field (W) in your target's path, then fire Hextech Ray (E): the field slows them, and if they stay in it for 1.25 seconds, they're stunned.

Glorious Evolution (passive) upgrades a spell every 100 Hex Fragments: Hextech Ray (E) to poke and clear, Siphon Power (Q) to survive, Gravity Field (W) to slow.

Place Arcane Storm (R) on grouped enemies: it follows the champions it just damaged on its own, and you can recast it to move it.

Don't stand right next to her when Ring of Frost (W) is up: it roots every enemy near her, and it has a 10 to 8 second cooldown.

If you have CC, land it on her while the claw of Glacial Path (E) is traveling: immobilized, she can't blink to it, or drop on you with Ring of Frost (W).

After her engage, fight back: Glacial Path (E) has a 24 to 12 second cooldown, and without it, she can't reposition in an instant.

If you have a cleanse, save it for Frozen Tomb (R): on you, it stuns you, and the ice around you slows your allies.