Which summoner spells are locked by Skarner's ultimate?
Skarner's ultimate prevents auto-attacks, casting E, and flash, but permits casting Q, W, and Exhaust.
So some summoner spells are permitted during Skarner's ult, and others are forbidden. Which are permitted, and which are locked?
Solution 1:
Flash and teleport are forbidden (for evident reasons), all the others (including ghost) are allowed.
Basically, you can't cast anything teleporting you nor trigger an action that uses your tail (as it is used by ulti), these actions include auto-attacks and E.