Polearm Grand master

prerequisites: have Polearm master. note: replaces Polearm master

Extensive practice and training with reach weapons has made you extraordinarily skilled with their use, allowing you to keep your enemies at bay while dealing greater damage.  You gain the following benefits when using a pike, glaive, halberd, or other polearm:

While you are wielding a pike, glaive, or halberd other creatures provoke an opportunity attack from you when they enter the reach you have with that weapon.

You can set your pike, halberd, or glaive to do a charge attack. once per turn As a bonus action, choose a creature you can see that is at minimum 25 feet away from you,youmust not have moved previously to achieve that distance, this we'll also use any movement you used for this turn. then charge at the enemy with all your might! If the attack hits, the target takes an extra 1d12 piercing damage.

If a attacker is mounted, you can use your reaction to hit, if the weapon attack hits, the rider must make a DEX saving throw contested by your STR saving throw.  If the rider loses the saving throw they are dismounted and knocked Prone. You can't use this ability if the creature used the Disengage action before moving.

When you use a pike, halberd, glaive, or other polearms, its damage die changes from a d10 to a d12. note: spears if one handed do NOT gain this effect (This benefit has no effect if another feature has already improved the weapon's die.)