Elemental Goose

You conjure an elemental spirit within range that takes the form of a goose and lasts for the duration or until you cast this spell again. When the elemental appears, choose one of the following damage types: acid, cold, fire, lightning or thunder. The elemental assumes a visual form representative of the chosen damage type. For example, if you choose fire, the elemental might appear as a flaming goose with eyes of coal and a body made of burning brimstone, or if you chose thunder, the elemental might appear as a crackling black cloud in the shape of a hissing goose head.
  When the elemental first appears, you can have it make a melee spell attack against a creature within 5 feet of it, using your spellcasting ability modifier. On a hit, the target creature takes 2d6 damage of the chosen type.
  As a bonus action on your turn, you can move the elemental up to 25 feet and repeat the attack against a creature within 5 feet of it.

At Higher Levels: When you cast this spell using a spell slot of 4th-level or higher, the damage increases by 1d6 for each level above 3rd.