I think Revenant Bishop should be much more expensive or removed entirely. This card kills all enchantments. I think it will do more against any enchantment then ascent did against high casting cost creatures. It's not overpowered, but I'm afraid that it will limit the diversity of deck people are willing to use. It's only defence is that it takes care of training, wich IMO are overpowered, but it would be bether to nerf training than allow such a card in to the game.

I agree. I won many games in the beta league thanks to Bishop taking care of overclocks, desolation totems, blessed are the meeks, trainings... If you can spare flux, you never will have to be afraid of enchantments with Bishops in deck. If opponent gives up on casting enchantments, the Bishop will still be useful on the board as a 1/2 3-moving hover creature.

Training had another good counter to it in the new set: Mystic Feedback. It's unaligned, so people who hate trainings can pack some in any deck.

Yeah I'm thinking of either just making him 4I or :
Take an enchantment when Bishop comes into play. When Bishop leaves play taken enchantment and bishop are shuffled into their controllers deck.

I concur as he is now, he's way too good. The second option sounds fine to me. Hell, I'd still go for something that just gave him the free disenchant when he came into play, with no 'back to deck' stuff.

I hadn't found the right deck for him yet, but I also saw the potential of him to totally trash opponents. In a deck with lots of enchantments of its own you can recycle him whenever you want. I think any change that eliminates the ability to bring him back to your hand easily is fine.

IMHO it does not require any "back" abilities. Comes into play, disenchants and the story is finished. The easiest way to avoid problems and make a still good card.