Immortal d
A skill that can be added as a choice is the shield breaking into smaller pieces and either getting sent out in a v formation damaging enemies with a blast of shards, from the character get sent outward from all sides damaging and knocking back enemies, having the shards in an area around the character constantly damaging enemies for a time, or/and sending the shards in a consintrate beam like blast to one enemie and hitting anyone behind them. As well the can get the blast to go outward from the characters back to damage the enemies behind them and knocking them back, possibly making a space to escape or to find a better vantage point, while slicing them with the sword from the front.
An option to change the mount into some other majestic animal like a rino, Pegasus, unicorn, a rainbow unicorn Pegasus mix lol, a big feline beast, snake, lizard, there are also chimaeras, dragons and griffins. The ones that can fly can damaged the enemies by stomping on their heads and maybe lessening the damage taken by the character riding the animal.