Talk:Protection for Plantdom/@comment-16894369-20171116063512

I think I can now confirm a certain pattern:

If a player opens an operation and reaches 30%, Wave 7 enemy will always be an extremely tough one (such as Diablo's Overheal, PR Lucifer's overheal, Geironul's weakening), HP possibly reaching over 20M. Also.....

In very rare circumstances above, a monster of the very rare Special Draw series will appear; I've encountered Satan, Guan Yu, Izagani, Arthur, and Nobunaga so far, all of which have 25M+ HP.

The same phenomenon can also occur in Wave 15 (70%) as well.

For Challenge, the case is similar but less extreme, at Wave 5 and 17 (20% and 80%) - at least the aforementioned enemies are very unlikely to appear in Challenge.