Titan is my least played character. I main a warlock, but am not a fan of Stormcaller. What nerfs are you talking about? The 2 meter and damage nerf for firebolt and arcbolt grenades, or the blink nerf? Both are still viable in PvP. Especially blink. Those were the one changes unless I forgot one. Voidwalker, Striker, Defender, and Gunslinger remain untouched.