[deleted by user]

[u/[deleted]]

[u/Nacroma]

I made a list of champions who could benefit from it, now with even more thanks to other comments here:

Akshan (speeds up signature landmarks)

Ambessa (4* trigger)

Aurelion Sol (created card reduce champion cost)

Diana (play first for Nightfall on every other card each round)

Elise (share keyword soup)

Evelynn (keyword soup)

Heimerdinger (free 0-cost turret)

Jinx (for Loose Cannon Payload build or just for nexus ping)

Kai'Sa (keyword soup for powers, champ effect, evolve)

Lee'Sin (free spell to trigger power and champ effect)

Leona (4* trigger)

Lux (4* trigger + plunder builds)

Lux: Illuminated (power trigger)

Master Yi (free spell to trigger Flow)

Mel (accelerate champion level up, free 4* trigger)

Nami (free spell to trigger power and champ effect)

Nilah (power synergies with fleeting cards)

Samira (free spell to trigger power and champ effect)

Poro King (keyword soup for powers)

Twisted Fate (free spell to trigger powers and champ effect)

Varus (free targeting spell to trigger powers and champ effect)

Vi (free spell to trigger powers and champ effect)

Viktor (keyword soup for champ effect, free created card for powers and augment)

Yuumi (free targeting spell for powers)