You hurl a 4-inch-diameter sphere of energy at a creature that you can see within range. You choose acid, cold, fire, lightning, poison, or thunder for the type of orb you create, and then make a ranged spell attack against the target. If the attack hits, the creature takes 3d6 damage of the type you chose.   Depending on the type of damage you choose the spell also as diferent effects that can occur, if you want them to occur (can just be the 3d6 dmg):  

Damage Type	Optional Extra Effect
Fire	Creates a surface of fire around and beneath the target for 2 turns, any creature that starts their turn or passes through that area on their turn take 1d4 fire damage.
Cold	Creates a surface of ice around and beneath the target for 2 turns, any creature that passes through that area must pass a DC 12 dexterity saving throw or fall Prone.
Acid	Creates a surface of acid around and beneath the target for 2 turns, any creature that starts their turn or passes through that area on their turn have their AC reduced by 2 until the end of their next turn.
Lightning	If the target is wet or is standing on a wet surface the target takes an aditional 1d6 lighting damage, any creature also touching the same wet surface take the same extra damage.
Poison	The target and any creature 5ft away from the target must save on a DC 12 constitution saving throw or be poisoned until the end of their next turn.
Thunder	The dice rolled on the damage become d8s instead of d6s (ex: lvl 1 you would deal 3d8 thunder damage) and, if you want, the target must save on a DC 12 strength saving throw or be knocked back 10 ft.