I've seen the "let the rider's mount carry him into your spear" only a couple times. Here vs Parry in descending chain:
You let the rider's mount carry him into your spear 16 melee damage, but the rider blocks deftly and deflects all of the damage.
The rider sets his feet and prepares for a powerful parry.
The rider viciously slashes you for 6 melee damage.
Also vs Parry in ascending chain
You let the rider's mount carry him into your spear 28 melee damage, but the rider blocks deftly and deflects all of the damage.
The rider sets his feet and prepares for a powerful parry.
The rider sets up a perfect riposte, piercing you with his blade for 5 melee damage.
The rider tries to run you down, dealing you 1 melee damage.
Also vs Parry in 2nd pass (Cruel Slash-Parry-Swordplay). Does not occur vs lash out with Hoof or Cruel Slash.
Nothing special vs Mushroom Warrior Parry.
You brace your spear to stab the warrior for 11 melee damage, but the warrior blocks deftly and deflects all of the damage.
The warrior sets its feet and prepares for a powerful parry.
I guess the other techniques the rider uses are all melee so the "You brace your spear to counter the charge" message works there, and Kinak wanted a way to joust against the rider if it uses Parry too.