Collection>Spells>Teleport: description doesn't include a cooldown
every other summoner spell has a cooldown at the bottom of the description of the spell, except 
teleport.
minor bug, but still...
if you can check for yourself and answer the poll that'd be great :)
I believe it should be 300 seconds and 200 seconds if canceled. image is just to prove my point. included some other spells to show you how it should be
**EDIT: the cooldown is also missing in the character selection screen **
other bugs I've found: Ryze's 1st ability "Overload" doesn't show mana cost properly NOT fixed as of 2017-07-21 v7.144744766.4745081