[{quoted}](name=Ser Garland,realm=NA,application-id=3ErqAdtq,discussion-id=Pi2IhZJK,comment-id=0020,timestamp=2015-06-18T18:39:25.035+0000)
As a J4 main, this might make him too Over Powered. I like that they treat his cataclysm as Terrain. If you can dash throughout terrain, you can dash through cataclysm. I use his ult as an execute/follow up anyway rather than an engage most of the time.
A low cool down ult that almost always forces a flash is a very very good ability. If you don't have flash and your dash is on cool down/non existent, you're pretty much screwed.
Now, Bugs like being able to just -walk- out of cataclysm. Fix those.
Meanwhile Vayne tumble
Straight from the wiki :Tumble cannot move Vayne over impassible terrain, but it does allow her to pass through minions and monsters.
Jarvan IV leaps to an enemy champion, dealing physical damage to them and creating a 325-radius circle of impassable terrain around themselves.