Exactly what is the timeline from the perspective of the Warhammer of Zillihoo? We've seen it alchemized, Gamzee had it, Jake had it, the bunny had it and gave it to John. Just how did it get around?
It was created by the tricksters which was the beginning of it’s timeline but also the most recent we’ve seen it so there’s a bit of a gap. An unknown amount of time later but also before, Jake got it out of the Lotus Time Capsule so John might have put it there when the temple was still in the median before it got sent to Earth. Jake gave it to the bunny who was sent back to the beta session and eventually gave it to John.
As for how Gamzee got it ??? maybe a different one??? time shenanigans??