Ornn W bug and tooltip clarification.

Ornn's W tooltip states that he belches fire for 2.5s, despite it seemingly last only about 0.75-1 second.

Video timestamp: https://youtu.be/WaJbuSNlVMU?t=92

On the wiki it lists that the damage is calculated every 0.5 seconds with 6 total ticks, but i can't see how that's possible with how short the animation is.

http://leagueoflegends.wikia.com/wiki/Ornn

Tooltip error: Also, the in-game tooltip states that BOTH Ornn's W shield AND belching fire lasts 2.5 seconds, whereas on the wiki it lists his shield lasting for 4 seconds, and then belches fire for 2.5 seconds.