I decided to make a 1h/Shield cav. So I started climbing up to 15 STR to be able to dish out some damage and wield proper damage. That went pretty fast. Then I started pushing AGI to get some riding and was really excited to reach 9 Agi and use my rouncey. I killed that poor thing round after round, maneuvering through hordes of enemies trying to land a good blow... masterworked weapons flashed at my horse, killing it in half a blow (due to my shitty skills at maneuvering and simply not knowing how to cav properly).
Well I thought, keep leveling, it'll get better - so I reached 12 Agi, thus getting 4 riding, still using my rouncey because it has good speed. Not much changed, in general I ended up being infantry and grinding my way up to 15 Agi.
Then something happened. I put the 5th point in riding and selected my warhorse. Suddenly my character transformed into a shiny knight, riding a goddamn tank an invincible steed! I bumped through enemy formations, throwing my foes to the ground making them cannon fodder for my fellow infantry allies! My sword went through archers like a hot knife through butter! When my rouncey had difficulties approaching an archer (dieing from arrows) my warhorse catches these arrows with its mouth and spits it back - laughing horribly while doing so!
This heavy horse changed my character from a peasant that desperately tries to get near enemies to a heroic warlord that rides down his enemies.
Thank you my dear heavy horse, I love you.