Asgore

Control Fire: Asgore can control fire around him. He can also summon fire as listed in the Produce Flame spell.

A King's Wisdom: Asgore has advantage on Wisdom saving throws/checks.

Inspiring Leader: Choosing up to 5 friendly creatures in the area, Asgore can give each advantage on attack rolls.

Spellcasting: Asgore is a 12th-level spellcaster. His spellcasting ability is Wisdom (spell save DC 18, +8 to hit with spell attacks). Asgore has the following spells prepared:
Cantrips (at will): Produce Flame, Control Flames, Fire Bolt
1st level (5 per day): Burning Hands

3rd Level (3 per day): Fireball, Speak With Plants

7th Level (2 per day): Fire Storm

Multiattack: Asgore can make three trident attacks. He may replace one of the trident attacks with a cantrip of his choice.

The King's Trident: Melee Weapon Attack: +10 to hit, reach 10 ft., 1 target. Hit: 7 (1d8 + 6) bludgeoning/piercing damage plus 6 (2d6) fire damage.

Sweeping Trident (Recharge 5-6): Asgore makes a sweeping attack with his trident. Flip a coin. Heads means that the target must make a dexterity saving throw (DC 18). On a success means that the target takes no damage. Failure means that the target takes 8 (2d8+6) damage and is now prone. Tails is the exact same, but failure means that the target takes no damage.

Child Murderer: If someone mentions to Asgore that he murdered innocent children, Asgore gains disadvantage on his next attack rolls.

Butterscotch Pie: If someone eats a slice of Toriel's butterscotch pie while next to Asgore, then he suffers disadvantage on his next attack roll.