Dice4Hire
First Post
Regarding Echoes of Thunder, I disagree. RAW is very clear here - damage comes after a hit, so it does indeed add damage to the power used.
The ambiguity is in RAI versus RAW. The RAI clearly seems to be that you gain the bonus on subsequent attacks. To bring it in line with RAI, the feat should probably be re-worded to only give the bonus if you deal damage with a thunder power. Alternatively, a provision for subsequent attacks could be used.
The problem with only doing damage, of course, is auto damage powers.
With Arcane Admixture, not hard to get one of those to get an auto + to hit.