Cavalier

While mounted, you gain the following benefits:

• When you are armed with a glaive, halberd, quarterstaff, spear, or yklwa, you gain an additional 1d6 in damage to a successful hit if you attack while your mount is moving.
• While you are wielding a glaive, halberd, pike, quarterstaff,  spear, or yklwa, other creatures provoke an opportunity attack from you when they enter the reach you have with that weapon.
• Your mount, whatever form they take, adds your proficiency modifier to their armor class
• You may use your bonus action to give your mount an attack action.