Wow,I just took a look at Recovery strike. I forgot that one, as I have never played a Str Cleric... True, Recovery Strike seems pretty much equivalent to Astral Seal. So if one need a nerf, the other would too. And I don't think either would need one.
Thing is, Recovery Strike keys off of a melee attack, which means that it is less "good" than Astral Seal for two reasons:
1) A Str cleric will not pump both Cha and Wis, so the base healing is less.
2) A Str cleric will not focus on healing to the point of MC for heal feats and other tricks that make Astral Seal so potentially good. In particular, a Str cleric does not take the PPs that allow multiple stacking of Cha modifiers.
Furthermore, since it seems not to have gotten through to a few people: you don't depend on your Cleric doing 1d6+wis or 1d8+str to win battles. You depend on your striker doing 1d10+str+SA/HQ/Curse damage two or more times a round.
The function of a leader in an optimized party is to set up the battlefield and make enemies easier to hit. The pacifist cleric does that, while maintaining extremely high levels of surgeless healing.
And the battle standard of healing only add +1 to all healing surge value use within the burst. I don't see how it can heal someone as astral seal. And anyway, an item is not a cleric power unless it is explicitly told in the description. I don't think L4W will work with what someone have told, only with official published stock from books, errata or D&DI.
No, the battle standard of healing allows everyone in the burst to heal 1 point when someone in the burst uses a surge. It's quite the difference. It doesn't gain as many bonuses as Astral Seal, but it easily heals "as much as Astral Seal" for several reasons:
1) It doesn't require hitting anything, whereas Astral Seal does
2) It heals anyone in close burst 5, whereas Astral Seal is 1/turn
3) A level 1 Cleric cleric can do 2 Healing Word/encounter as well as Healer's Mercy, which with a BSoH is a "nova heal" as everyone in close burst 5 spends a surge and then regains extra hp from the standard. Useless most of the time? Sure. I still would have loved it in the encounter Renau1g just put us through. Don't discount the use of Second Wind, either.
For what it's worth, you're correct- it doesn't count as a "cleric healing power", but it
does count as "your power with the healing keyword" or "your healing power" which means that Healer's Lore and Healer's Implement don't affect it, but Healer's Brooch, Holy Healing Weapon, Gloves of the Healer and Potent Restorables all do. I don't know if you're sensing a trend here.