Nami vs Soraka

Cast Aqua Prison (Q) on a slowed or immobile target, or where they're heading: the bubble lands in an area and stuns every enemy on impact.

Cast Tidecaller's Blessing (E) on your ADC just before they trade: their next autos and abilities slow and deal bonus magic damage.

Cast Ebb and Flow (W) so it bounces from one champion to another: it heals each ally, damages each enemy, and only hits the same champion once.

Cast Tidal Wave (R) to engage or to break an enemy engage: enemies hit take a knock-up and a slow, which lasts longer on those farther away.

Dodge Starcall (Q): if it hits a champion, Soraka heals and speeds up, and can pass that heal on to an ally.

Get out of Equinox (E) fast: you're silenced inside, and rooted if you're still there when the zone disappears.

If you can reach her, focus Soraka rather than the ally she heals: she has no dash, and each Astral Infusion (W) costs her health.

Finish your targets in a single burst: Wish (R) heals them wherever they are, and more below 40% health.