Battletag: cuteanduin#2960 Region: EU Trade only?: Yes, you go first
Why would this be used over Earthen Ring Farseer ?
That card can heal minions and the hero, while Acolite of Agony can only heal the hero.
I understand that Acolite of Agony can heal multiple times but with an HP of only 3, that will happen close to never.
This card can also not compete with Kabal Talonpriest. As that card has immediate effects.
Acolite of Agony should have been a 2/3 card for 2 mana or a 3/4 card for 3 mana.
Now it's just meh.
Priest Minions lose on stats because of cards like Power Word:Shield and Kabal Talonpriest makes the stick to the board easily. Earthen Ring as you said is only one time but this if it hit 2 times vs an agro deck it will be way good. Its at least playable. Also dont forget Kabal Talonpriest is just a Vanilla 3/4 if you have no board.