Tassiter's Morale Boost

All allied creatures within range bear witness to the caster giving an awe-inspiring speech, emboldening their spirits and willing them to fight on. Allied creatures within range who share a language with the caster gain the following benefits while engaged in combat:

• Advantage on saving throws against being frightened and/or charmed.
• Proficiency with Charisma (Intimidation) skill checks.
• A bonus to Constitution saving throws equal to 1d4 (rolled at the casting of this spell).

These effects end if the caster falls unconscious or otherwise becomes incapacitated. 

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, you may increase the size of the dice used to determine the bonus to Constitution saving throws (1d6 at 4th level, 1d8 at 5th level, and so on) to a maximum of 1d12 at 7th level.