I still think that Druidcraft is quite limited so I've decided to expand on druidcraft a bit more, based on Thaumaturgy.
Apart from the uses laid out in the PHB I'll add:
- Instantaneous sound that originates from a point of choice within range, such as a rumble of thunder, or any animal up to medium size (is medium too much?)
- Earth: Harmless tremors in the ground for 1 minute, shape mud or rock no more than a 5 ft cube... Can't think of other simple earth themed effects
- Fire: Create or snuff flames, cause flames to flicker, brighten or dim (not change colour as that isn't "natural")
- Air: soft breeze, raise or lower the temperature in a 5 ft cube (a change no bigger than 5º C), blow leaves
- Water: Make waves in a body of water, make something float in a direction of your choosing. (no water creation though)
- Shape dead wood, or twist and weave living branches or ground vegetation
Well, basically it will be a non damaging spell that gives the druid minor control over nature, the environment, and the elements. Up to the player's imagination.
BTW, there's no clerics in the group, so no one's stepping on their feet.
I did think about giving the spell for free, but i rather have it do something useful. Also, Druids only get 4 cantrips, and there aren't that many interesting druid cantrips IMHO