Asgore Dreemurr

King's Presence. When in the presence of Asgore Dreemurr all players who fail their charisma save will have their damage reduced by 40%

The One Who Rules Above All Monsters. If Asgore is your companion any monster who's a lower level than him will have to do a charisma save. If they fail the monster can either be killed or be gained as a new companion. (these types of companions won't fight for you but will rather help you progress through the story.)

Trident's Wrath. Melee Weapon Attack: +10 to hit, reach 7ft., 3 targets. Hit: 3 (1d20 + 2) Piercing damage. two turns to recharge or a short rest

Engulf. Ranged Magic Attack: +13 to hit, range 100ft, anyone in a 3ft radius of the blast. Hit: 2 (1d20 + 2) Fire damage.

Trident Slash. Melee Weapon Attack: +10 to hit, reach 6ft., 1 target. Hit: 2 (1d20 + 1 ) Slashing damage

Rings Of Fire. Ranged Magic Attack: +8 to hit, reach 60ft., 1 target. It binds the target for 3 turns. one turn to recharge

Purest Rage: Melee Weapon/Magic Attack: +17 to hit, range 10ft., all enemies in range. Hit: 5(1d20 + 5) Piercing/Fire damage you'll have to wait for 10 turns before using it and 10 turns again after using it or 5 long rests

 Will Power. Increases damage of allies and self by 20% for 5 turns, takes 4 turns or a long rest to recharge.

A New Heart. If the players choose to spare Asgore he will become their companion for the rest of the journey until he dies.

A Fatal End. If the players choose to finish off Asgore then every monster enemy they'll encounter after will be twice as hard but have double the exp.

True Testament. Once he reaches 20% of his max hp he won't attack for 2 turns but once those two turns are over he healths with max hp and his damage is doubled for the rest of the fight until he's brought to 10% of his max hp. When this happens he will stop attacking completely and the players can decide what they want to do with him.