My ideas got shot down! :D
Abilities are hard to balance.
This requires putting that number somewhere easily visible on the follower - which I'd rather not do
I think it would look nice in the space between the Attack and HP. Would make the attack-regen-hp look like a multicolored pill at the bottom of your follower :D But I can understand not wanting to change the game like that.
That would weaken the ability tremendously, I think probably make it useless? But it is an option.
Well you wouldn't have a momentum cost anymore. Its a totally different kind of ability. Your regen follower would no longer sit at 1HP endlessly. An auto-healing ability is pretty favorable in my view. I am pretty sure this auto-healing requiring 0 momentum, is stronger than 2 momentum cost on the regen that you have now.
I'm thinking an easy attempt at fixing it is raising the cost to a flat 2 Momentum. I'll give that a try.
As it is right now, to be relatively sure that it won't die, I leave 1 momentum unspent, per turn. (the enemy has still cleared my follower once or twice by using two damage cards) Its the downside of regen, otherwise I can be pretty sure the enemy will clear my 1HP follower. But leaving 2 Momentum unspent? Just to make sure that my regen follower will survive 1 possible hit? I doubt that I will do this. The difference between 1 and 2 is too large. It will even make me question whether I should even even attack a creature during my own turn, and spend 2 momentum for it. But it is a fast fix, maybe it will work.