Okay, so I accidentally stole Keldon warcaller from Warlords Stand in the current event while playing saga control, and I found out that it is kinda bugged. On the first turn Warcaller activates two first chapters, which is fine. On the next turn however, you get the third chapter activated twice. Almost killed myself with that chainers horror, lol.
I don’t believe that is a bug, as that is the “next” ability in line. It wouldn’t just remove them, because that happens as a trigger for transitioning to part 3. I’m not 100% sure, but I believe it is as intended
One chapter getting triggered multiple times just cannot be intended.