Mounted Caster

You are trained in the use of powers while mounted. While you are mounted and aren't incapacitated, you gain the following benefits:

• When you cast a power targeting yourself, you can also affect your mount with the power.
• You have advantage on melee force or tech attack rolls against any unmounted creature that is smaller than your mount.
• If your mount is subjected to an effect that allows it to make a Dexterity saving throw to take only half damage, it instead takes no damage if it succeeds on the saving throw, and only half damage if it fails.