Obryn
Hero
There's lots of kinds of Strikers. Not all should do the same damage, or do the same sorts of things.This is going to redeem warlocks as strikers? I see a bunch of controller rider feats with highly specific, once-an-encounter conditions. I see one or two that add a small bit of damage under highly specific conditions. I see only one that increases damage on a reliable basis, and that's an average of +1 to curse damage.
If that 1 damage is all it takes to fix warlocks, I do not think they would be nearly as unpopular as they are.
If you want pure damage, go with Ranger, Rogue, Sorcerer, or Barbarian. If you want to be a little bit Defender or Controller, go with Avenger. If you want to basically be a Striker/Controller hybrid, go with Warlock.
If you picked Warlock hoping to do huge spike damage, you probably picked the wrong class.

-O