Passive: While not channeling Teleport and being out-of-combat for 5 seconds, you can swap one of your equipped summoner spells to a new, single use summoner spell. You cannot select a summoner spell you have already equipped.
Your first swap becomes available at 6:00. Swaps have an initial cooldown of 270 seconds; selecting a unique summoner spell reduces the swap cooldown by 25 seconds. You must swap to 3 different summoner spells before returning to one you have already used.
Selecting a summoner spell places it on a 5-second cooldown. Using a selected summoner spell places the summoner spell in the same slot on a 10-second cooldown.