C229 It's Going to Rain

The passive triggering of the divination flywhisk is not only related to the form of the unit being summoned, but also related to its grade and level.

For example, Thieves had a very high chance of summoning 5 skeletons, but higher level skeletons and skeletons could summon 3 or 4 skeletons. As for BOSSes, there was a 80% chance of only 1 skeleton being summoned