Testosteron

You engulf yourself in purple flame making you stronger. While engulfed in this your Strength increases by 1, Dexterity increases by 1, your speed increases by 10 feet, and you gain 5 temporary hit points. While in this fire any creature that ends its turn within 5 feet of you, including you, take 2d4 fire damage. You may dispel this spell any time as a bonus action.

At Higher Levels. For every level above 1st you gain an extra 5 temporary hit points, and creatures take an extra 1d4 fire damage. For every even number of spell slot after 1st you gain another 5 movement speed. For every odd level after 1st you gain an additional 1 in Strength and Dexterity.