Is it just me or does bard seem more like a thief than a caretaker???
In the video, which I assume most of you saw, Bard ignores the war going on. Once the old man loses control of the stone, Bard comes in, picks it up, takes it to the top of the mountain and activates it before teleporting it and himself away.
He probably didn't want to get incinerated like that Noxian soldier did so he waited until the old man was shot like 4 times (well 2 in the back and 1 in the knee, Skyrim reference???) and no longer able to hold on to the stone. Bard saw his opportunity and stole the stone. He may run an inter-dimensional black market, dealing with The Watchers and the Void, selling stolen goods. Bard seems like a class-A asshole to me. He should be prosecuted and charged.
Azir better take care of his Sun Disk before Bard gets his hands on it too.