Birth-Spell Elemental Spirit

You call forth an elemental spirit. It manifests in an unoccupied space that you can see within range. This corporeal form uses the Elemental Spirit stat block. When you cast the spell, choose an element: Air, Earth, Fire, or Water. The creature resembles a bipedal form wreathed in the chosen element, which determines certain traits in its stat block. The creature disappears when it drops to 0 hit points or when the spell ends.

The creature is an ally to you and your companions. In combat, the creature shares your initiative count, but it takes its turn immediately after yours. It obeys your verbal commands (no action required by you). If you don't issue any, it takes the Dodge action and uses its move to avoid danger.

Armor Class 13 + PC proficiency bonus 
Hit Points matches PC hit points on spawn
Speed 40 ft., burrow 40 ft. (earth only), fly 40 ft. (air only hover), swim 40 ft. (water only)
STR DEX CON INT WIS CHA
18 (+4) 15 (+2) 17 (+3) 4 (-3) 10 (+0) 16 (+3)
Damage Resistances lightning and thunder (Air only); piercing and slashing (Earth only); acid (Water only)
Damage Immunities poison; fire (Fire only)
Condition Immunities exhaustion, frightened, paralyzed, petrified, poisoned, unconscious
Senses darkvision 60 ft., passive Perception 10
Languages Primordial, understands the languages you speak

Amorphous Form (Air, Fire, and Water Only). The elemental can move through a space as narrow as 1 inch wide without squeezing.

Actions
Multiattack. The elemental makes 2 attacks.
Slam. Melee Weapon Attack: your attack modifier to hit, reach 5 ft., one target. Hit: 1d10 + 4 + the spell's level bludgeoning damage (Air, Earth, and Water only) or fire damage (Fire only).