Castellan of the Braiards

Riposte. Castellan may make an attack of opportunity against a target whose attack missed while using the Parry reaction. This does not use an action.

Conviction.  When half health is reached, Castellan may make an additional attack per turn, gain +2 damage to all attacks.

Nullstone Ring. The Castellan carries a Nullstone Ring. The ring creates an invisible barrier 2-3 inches above the surface of the skin surrounding the entire body with a Antimagic Field. I does not affect any mundane objects from passing through it, nor does it stop the affects of poison unless of course they are a manifestation of a magic. It also has a secondary effect, that allows its magic nullification to extend to any creatures within 10ft. The Anti-Magic Field remains active until it is turned on/off by using an Action on a turn. Notes: Requires 1 hour to attune and unattune to. While attuned, if the wearer drops to 0 HP, or is forced to remove the ring for any reason, the ring, its wearer, and any gear on the wearer's person is instantly disintegrated leaving nothing but a pile of ash.

Legendary Resistance (3/Day). If Castellan fails a saving throw, it can choose to succeed instead.

Multiattack. Castellan makes up to 4 attacks.

Great Sword "Frostbite". Melee Weapon Attack: +9 to hit, reach 10 ft., two target. Hit: 14 (2d6 + 7) slashing damage, plus and additional (2d6) Lightning damage.

Longbow. Ranged Weapon Attack: +10 to hit, range 150/400 ft., 3 targets. Hit: 5 (1d10) piercing damage.

Legion's Call. Ranged Spell Attack: +12 summons a magical bolt at one target up to 40 ft. away. Target creature takes (4d8) necrotic damage.

Ice Spear. Ranged Attack:   +10 to hit, range 120 ft., one target. Hit: 18 (6d6) Cold damage. Creatures within 5 ft. take half the amount of the Cold damage done in Piercing damage as a result of the shards of ice from the original attack.

Leadership (Recharges after a Short or Long Rest). For 1 minute, the Castellan can utter a special command or warning whenever a non-hostile creature that it can see within 30 feet of it makes an attack roll or a saving throw. The creature can add a d4 to its roll provided it can hear and understand the Castellan. A creature can benefit from only one Leadership die at a time. This effect ends if the Castellan is incapacitated.

Parry. The Castellan adds 2 to its AC against one melee attack that would hit it. To do so, the knight must see the attacker and be wielding a melee weapon.

Can take 3 Legendary Actions, choosing from the options below. Only one legendary action can be used at a time, and only at the end of another creature's turn. Spent legendary actions are regained at the start of each turn.

Great Sword "Frostbite". Castellan makes one Great Sword "Frostbite" attack.

Legion's Call. Castellan makes a Legion's Call attack.

Ice Spear. Castellan makes one Ice Spear attack.

Leap Strike (costs 2 actions). Castellan leaps up into the air and dashes over to attack a single target with his Great Sword "Frostbite". He arrives in an unoccupied space 5 ft. away from his target. Target must make a DC 16 Dexterity saving throw or take a Melee Weapon Attack. Melee Weapon Attack: +10 to hit, reach 50 ft., one target. Hit: 27 (2d20+7) piercing damage.

All Out Assault (costs 3 actions). Castellan leaps and moves to a new location up to 50 ft. away. He casts Legion's Call at this time. Every 10 ft. he travels, Castellan may make a Ice Spear attack at a creature up to 10 ft. away from his position at the time.

Legion's Rage (costs 3 actions). Castellan casts Legion's Call three times.