@Alfred pick a random number between 1 and 20
@Kurtroedeger Sure! Here's a random number between 1 and 20: 8
@Alfred you failed your saving throw and the goblin hits you for 10 points of damage. How much health do you have left?
@Kurtroedeger Assuming I had full health before the attack, I would have 10 points of health left after taking 10 points of damage from the goblin.
@Alfred would you like to attack the goblin back?
@Kurtroedeger I don't have the ability to physically attack anyone. However, if you're playing a game or in a hypothetical scenario, it would be up to you whether or not you want to attack the goblin back.
@Alfred I cast magic missile at the goblin, what happens next?