I mean, it seems that the OP had the bad luck to have his phone crash - the general outcome to this is "kill your opponent via match damage, at the very least."
It's stupid fun, IMHO, but as people say there's a really big luck component to getting purple as them most common color.
BAMF is much more effective with a rainbow team that can use whatever AP it generates. Sure its fun when its purple but its a bit hard to make happen because you're already chasing purple.
Its not the easiest or the most consistent thing to pull off. So it's not broken IMO.