Kayle's new passive is what Syndra's Transcendent should be.
Syndra'a passive has always been a bit on the boring side. Sure, the VFX upgrades are nice to see, but the passive itself is non-existant until lvl 9 and the effects are just straight damage buffs that come very late for game standards and Syndra's very powerspikes, or mere range increases. You proved that this "evolving Transcendental power" passive is possible in better ways now, so maybe it's time to give Syndra some love.