Also note that each monster kill that fails to trigger herald in the same area increases spawn chance in that area. So in certain areas if herald spawns, thats it, you must go to other zones (in context of full clear tz) but if you want efficiency only farm high density areas.
New heralds are designed for 30min tz but the issue is shards drop all the time ( for me it is better tho compared to 30min tz fomo )
Anyone have data on how much each failed spawn increases spawn chance? Could be good to know if worth nuking the stragglers on my way to next zone
Also what is considered the TZ area affected.
E.g. stony field, does it include or exclude tristram
Tombs is it shared between tombs or individual to a tomb
Cold plains, does it include or is separate from the cave
And so on,