Vladimir vs Locke

After two Transfusion (Q) casts, the next one is empowered for a few seconds: save it for a trade, since it hits harder and heals you based on your missing health.

Last-hit minions with Transfusion (Q) until your items come in: it deals damage before healing you, and costs you nothing.

Charge Tides of Blood (E) for at least 1 second before releasing: the missiles then also slow, and their damage grows with the charge.

Save Sanguine Pool (W) to dodge CC or a burst: for 2 seconds, you're untargetable. It costs you part of your current health.

Cast Hemoplague (R) before your burst: infected enemies take increased damage from all sources, then the blast heals you for each champion hit.

Back instead of staying in lane at low health: Silver Stake (passive) adds damage to his autos that grows with your missing health.

Trade after Ashen Pursuit (E): it's his only instant movement, and its 10-second cooldown only resets if he gets a takedown.

During Soul Ignition (W), only hit him if you can kill him: at the end, he heals back part of the last damage taken, yours included.

Marked by Purgatory (R), stay above its threshold: if you have a heal or a shield, use it, because he seals marked enemies who drop below it.

If the Purgatory (R) artifact lands, hold the area where it fell: by picking it up, Locke raises his execute threshold for each sealed champion, for the rest of the game.