Viktor vs Zeri

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.

Keep minions between you and her: Burst Fire (Q) stops on the first enemy hit, except during Spark Surge (E), when it pierces through them.

Don't fight near a wall against her: if Ultrashock Laser (W) hits it, it becomes an area laser that slows and critically strikes.

If you can engage, go in right after Spark Surge (E): it's her only dash, and each of her hits lowers its cooldown, so don't wait.

During Lightning Crash (R), back off out of her range: each hit she lands on a champion extends the effect and makes her faster.