What is Achilles heel on Howrse?

an achilles heel is a BMI on howrse. With it you no longer have to worry about what time you bed your horse down for the night or what its energy level is. Indeed, if you put your horse to bed too late or with little energy, he will wake up with as much energy, health and morale as if you had put him to bed with at least 20% of energy and before 22:00.

Happy Howrsing,

Happy98