Ensemble of Elegance (5e Spell)
From D&D Wiki
|Casting time:||1 action|
|Components:||V,S,M (an instrument you are proficient with)|
|Duration:||Concentration, up to 1 minute|
For the duration of this spell and while within range, you and up to Charisma modifier creatures, are under the effect of the haste spell. When this spell ends, you and other creatures affected by this spell, gain 1 level of exhaustion. If a creature leave the radius of this spell, the effect ends immediately and they cannot take an action until the start of their next turn. If you are hit and take damage, everyone under the effect of this spell makes a Constitution saving throw or take 1 level of exhaustion. The DC for this save is equal to half the damage taken by you or 10, whichever is higher.