What's more there is no drawback for the player; in a fraction of a second you can activate this attack having appeared to be defenceless immediately beforehand, then the enemy is taken out by a hugely powerful impact- but this apparent impact doesn't make the infantryman break a sweat, never mind damage his spear (if a horse is downed by the contact with the spearhead, you would expect it to have penetrated it's body significantly, which I would imagine would at least wrench the spear to one side or out of the footman's hands or even break it. But instead horse and rider fall as if they ran into a wall without the slightest effect on the infantryman or his weapon).