I'm playing a druid in my latest patch 5 playthrough, and I noticed something super annoying with the "Speak with animals" spell - it requires concentration!
This might be according D&D rulebook, but in a videogame it's just super annoying.
Especially since you can overwrite it by accident by using the cantrip for extra stats in conversation, overriding that concentration.
I see three options that could be used to improve it:
1. Remove the concentration and make it like "speak with dead" spell. You can recast it for free whenever you like after the first time. This way it would still use a spell slot (lvl 1).
2. Make it a permanent buff until the next long rest.
3. Make it a cantrip - it's free to cast.
My vote is on 2.