Pantheon's ult needs a rework

There's way too much reaction time against Grand Skyfall. It's cast time is 6 seconds which provides way too much counterplay. You have to relegate its purposes to that of a preemptive attack rather than abruptly ambushing your enemies. (Like ulting on top of a bush you see your opponent walking into.)

As an ultimate that is meant to enforce global map pressure and presence it's quite possibly the worst semi-global ult in the game. It's damage is decent, it's cooldown is understandable but its cast time is just way too high to pull off a good gank/engage against anyone who is remotely decent at this game.