User blog comment:Caudyr/Abilities List From the Author + Translation of Abilities as I go Through the Story.../@comment-124.83.16.225-20151113080923/@comment-4784862-20151113085008

100 blossoms 1000 spears thing was an ability he learned on day 78 from the army (when he killed that dragon slayer guy).

The abilities I mentioned above are ones he got  actual  "Ability Learned" messages for...so...I dunno. I doubt that's the case.

As for Spear King...yeah, it's probably an upgrade to Master Spearman or something...but, that's hard to say with any certainty unless you can find something from the author saying so, heh.