Quote Originally Posted by Chardrizard View Post
If it has 15min timer it probably will comes with 30min/1hour cooldown.
1hour makes more sense if it only limited to 4 players per entry.
This. Just to make sure you are not just doing this event every 15 minutes all day and getting a lot of seals for it. Also, not fair if the same 4 people happen to find a way to hit the NPC before everyone else, it wouldn't end well.