Grandmaster of the Glaive

As a Grandmaster of the Glaive you have reached the pinnacle of polearm fighting. You can either attack or use a superiority point to use one of your superior attacks. Your command of this weapon allows you to

• You add +5 to your Glaive attack roll.
• You do not have disadvantage when attacking a target within 5 feet of you. 
• You make opportunity attacks when a creature comes within or leaves your weapons range.

Superiority Attacks:

You start with three superiority points. A superiority point is expended when you use a superiority attack. You regain all of your expended superiority points when you finish a long rest, half points from short rest. You gain another superiority point at 7th, and 13th level.

Disarming Attack

When you hit a creature with a weapon attack, you can expend one superiority point to attempt to disarm the target, forcing it to drop one item of your choice that it's holding. The target must make a dexterity (Acrobatics) check against your save DC. On a failed check, the creature drops the object you choose. The object lands at its feet.

Counter Attack

When a creature makes hits you with a melee attack you can expend two superiority points to dodge this attack and counter with your weapon attack. Your counter can if you choose, move you to one of the sides of the targeted creature. This movement doesn't provoke opportunity attack from other creatures. 

Trip Attack

When you hit a creature with a weapon attack, you can expend one superiority point to attempt to sweep the target down. If the target is Large or smaller, it must make a Strength saving throw. On a failed save, you knock the target prone.