First Aid replacing Spare the Dying

[bedir than]

This cantrip came about for two reasons. My homebrew world is low magic, so healing is hard to come by. I wanted a small boost that could be used to increase the chance of retreat and/or just save people's lives. Two, I hate Spare the Dying. It's weaker than Medicine or a Healing Kit.

First Aid
Evocation cantrip (Cleric)
Casting Time: 1 action
Range: Touch
Component: V, S
Duration: Instantaneous
When you touch a creature with zero hit points it regains 1 hp and also gains 1d4+casting modifier temporary hit points for the next minute or until they take damage that removes temporary HP. This spell does not work on undead or constructs. At 5th, 11th and 17th level another d4 is added to this effect.

Is this broken? Does it need a different name?

 

[peterka99]

There is no restriction on a cantrip ... The wounded will regain 100 hit points in 100 rounds... Anybody will be healed without slot spending...

 

[bedir than]

Yep, you're right. There needs to be a caveat that it can only be cast on a subject with zero hit points.

 

[peterka99]

Then It may be fine.