Yes, thanks, but Shimmering armor (cloth only) isn't going to work on this plate-wearing, shield-using Cavalier hybrid. Really, the only thing I found that's remotely possible is using Razordark Bracers (L11 Common item), which is really only available from level 7 (L+4 per DMG parcel system) or possibly level 6 if the character were to save all found cash-equivalent loot from first level on for purchasing it.

But I appreciate your efforts. Realistically, I think Hellish Rebuke will thus only come into play at low levels when the character wins initiative and as an opening attack before moving into Defender position.