2. Make it a permanent buff until the next long rest.
3. Make it a cantrip - it's free to cast.
Both of these would be great!
Nah, the second is another case of advocating for convenience at expenses of balance and consistency.
There are classes that have to spend a feat or take a specific specialization to have permanent access to that ability. giving it away as a free cantrip is a big middle finger to them, especially since the game is already more than generous enough with offering ways to access that ability (see the overabundance of potions).
