Bob, the Power Metal Modron

Magic Resistance. Bob has advantage on saving throws against spells and other magical effects.

Rhapsody of Resistance 🎻: Using the power of the Harmonious Harmonium when the user uses an action to use the Countercharm Bard ability, the duration is one minute. This power can be used once per long rest.

Brütal Tempo 🤘. You unleash fast tempo, heavy distortion and powerful rhythms at a creature you can see within range. If the target can hear you , it must succeed on a DC 18 Constitution saving throw or take 5d4 thunder damage and have disadvantage on the next attack roll it makes before the end of its next turn.

Multiattack. The Bob makes two attacks with an Axe or the Harmonious Harmonium

Axe . Melee Weapon Attack: +9 to hit, reach 5 ft., one target. Hit: 16 (2d10 + 5) slashing damage.

Harmonious Harmonium Bash 🎻. Melee Weapon Attack: +10 to hit, reach 5 ft., one target. Hit: 16 (2d10 + 6) bludgeoning damage.

Solo of Cosmic Might (Recharge 6). As an action, Bob shreds an astral guitar riff, unleashing a wave of force in a 60-foot cone. Each creature in the area must make a DC 18 Constitution saving throw, taking 8d10 force damage and being pushed 30 feet on a failed save, or half damage and no push on a success.

 Harmony of Consciousness (Recharge 5-6) 🎻: Using the power of the Harmonious Harmonium as an action, the user can play a captivating melody on the Harmonious Harmonium. Any ally that can hear the melody gains an immediate saving throws against ongoing effects that imparting the stunned, unconscious or paralysed conditions., with a successful save immediately ending that condition(s). 

Battle Hymn of the Multiverse (Recharge 6) 🎻: As an action, the user can play the Battle Hymn on the Harmonious Harmonium. This ancient melody resonates with the very fabric of the multiverse, calling forth its energy to aid the user and their allies. Until the start of the users next turn any ally that can hear the hymn gains advantage on attack rolls, saving throws, and ability checks. Additionally, the first damage roll they make during this period is maximized.

Metal Horns 🤘🤘(Recharge 5-6). Bob throws up the metal horns, radiating pure power metal energy. Any ally who uses their reaction to raise their own metal horns gains advantage on their next attack roll.

Power Slide. Bob moves up to 30 feet without provoking opportunity attacks.

Harmonious Harmonium Bash 🎻. Melee Weapon Attack: +10 to hit, reach 5 ft., one target. Hit: 16 (2d10 + 6) bludgeoning damage.

Power Stance. Bob plants his feet wide, fists clenched, striking a perfectly heroic pose as if he’s about to drop the greatest solo in history.