Coffee Splash

You splash a magical cup of coffee at either a friend or foe. You must declare which before rolling an attack roll.

Friend:
If a creature is willing they may choose to allow the attack to hit however you must still roll the attack roll. On hit (2-20) a friendly creature feels energized and gets to move double their movement speed as a reaction on your turn. On miss (natural 1) the friend drinks too much of the coffee, gets an upset stomach, and has a movement speed of zero until the end of their next turn.
Foe: 
You hurl a mote of hot coffee at a creature or an object within range. Make a ranged spell attack against the target. On a hit, the target takes 1d10 Fire damage. If during this attack the caster rolls a natural 1 on their spell attack, they get an upset stomach, and have a movement speed of zero until the end of their next turn.

Cantrip Upgrade. The damage increases by 1d10 when you reach levels 5 (2d10), 11 (3d10), and 17 (4d10).