Healing Touch Cantrip Balance

[Witty Username]

I don't think this needs to be a bonus action spell, as a bonus action it will arguably be more healing than a healing word, it being more comparable to cure wounds. healing is not unlimited so the normal cantrip issue is avoided, also does not replace resting(unless you want warlocks to give you the stink eye). I think the scaling needs playtesting, since it will out pace low level healing spells but also the healing is still a fairly low number compared to monster damage output.

[LibraryOgre]

Often wonder if it would be balanced to create a spell that allows a creature to spend its own hit dice in and out of combat. Especially with all this talk about short and long rest mechanics recently.
What does everyone thing about this?

Healing Touch

Evocation Cantrip
Casting Time: 1 bonus action
Range: Touch
Components: V

Duration: Instantaneous

A creature of your choice that you can see within range may spend a hit die to heal themselves. The creature must have at least one hit point and hit dice to spend or this spell fails.

The amount of hit dice a creature may spend to heal themselves with this spell increases by 1 when you reach 5th level (2 hit dice), 11th level (3 hit dice), and 17th level (4 hit dice).

I tend to agree; making it a bonus action cantrip is the breaking point for me. Make it an action, and it seems about right to me.

[stoutstien]

Could add concentration as a factor as well.

[MrStabby]

Give it a material component of a healing kit which is consumes,and it might work. Essentially it themes as a spell where you use the spell to enhance the power of an existing healing kit.