NOTE: Heroes Colosseo LXXIV would be correct.
The Kaeru chieftain was a teacher of swordsmanship and archery who always kept abreast of new developments in martial artistry. He also felt it was not right to wield his talents for his own race alone, so he formed alliances with other, weaker clans.
See Kaeru Sensei
Skill Card of the Heroes Colosseo LXXIX. Boosts BP earnings up to 200% at Skill Lvl 1 and up to 250% at Lvl 10.