Zac's Goo Walking Away?!

Best guess as to what's happening: From what I can see here, it looks like he fails to be put into stasis as he dies and the passive triggers. But it does not go on cooldown; notice how it triggers again right at the end of the video, when he's nearly offscreen. Perhaps the line of code that starts the cooldown is somehow tied to another event in the passive that failed to trigger properly.

At least it's fairly clear WHAT happened: passive did not start properly, did not go on cooldown. WHY it happened is difficult to glean from the video. Watching it in slow motion makes it easier to see the exact circumstances of his "death": Vayne gets the last hit on Zac (by landing a third stack of Silver Bolts) while he is in midair (due to Yasuo's EQ knockup) above Cassiopeia's Miasma.

Perhaps the root cause is Cassiopeia's new Grounded CC. It's the newest thing in this scenario that is affecting Zac; perhaps it hasn't had all its bugs ironed out yet.

Have fun reproducing this one, @Riot

[slayer-pantheon-thumbs]

wtf lol