Radkus here from the Tech Team @ Player Support.
We're currently receiving some reports where certain skills from the following champions are not working as intended:
_These champions are currently disabled and we're currently looking for a fix. _
Besides that, we're also looking into some issues where runes are not working as it should. (electrocute doesn't pop up, etc.)
We can't really provide you an estimate time when the issues will be resolved in order to prevent any sort of confusion, however don't fret, we're looking into getting this fixed ASAP.
Sorry for any inconvenience this issue might've caused and see you on the Rift!