Mel vs LeBlanc

Stay back and poke with Radiant Volley (Q): its projectiles explode in an area up to 950 range, and each hit applies Overwhelm.

Land an auto after each spell: Searing Brilliance (passive) adds three projectiles to it per spell cast, and enough Overwhelm executes the target.

Save Rebuttal (W) for a dangerous projectile: the barrier sends it back to its caster, and you gain a shield and move speed.

Hit your target head-on with Solar Snare (E): only the core of the orb roots, the aura around it just slows and damages.

Cast Golden Eclipse (R) to finish from range: it hits every enemy marked by Overwhelm, wherever they are, harder with each stack.

As soon as Ethereal Chains (E) tethers you, move away from her: if you stay chained for 1.5 seconds, you're rooted and take extra damage.

Trade while Distortion (W) is on cooldown: it's her dash both to get in and to get out, and it comes back in 15 to 10 seconds.

If you have a shield or a heal, save it for her combo: Sigil of Malice (Q) detonates as soon as another spell hits you, and all her damage lands at once.

If you have CC, aim at the starting point of her Distortion (W): within 4 seconds, she can return there by recasting the spell.

When she drops below 40% health, find the real LeBlanc before hitting: Mirror Image (passive) makes her invisible for 1 second and leaves a copy that deals no damage.