They will deal 100% life damage (aka oneshot) to 50% life damage to a player (depending on the build/armor you run) when they jump attack. Additionally they will knock you down and apply bleed.
Combined with horses this is too much. Especially in the early stages of the game. It’s also relatively cheap to get them.
They should be toned done. At leaast remove the insane damage on the knockdown jumpo attack.
Also rebalance horses.