If I use Furious Smash with Cruel Cut Style, am I the source of the ongoing damage that I'm granting my ally's attack? I was considering taking Disciple of Torment so that while the ongoing damage from my Furious Smash is active, the enemies grant combat advantage.
Furious Smash (Player's Handbook, page 145):
Hit: Strength modifier damage. Choose an ally adjacent to you or to the target. The ally gains a power bonus to the next attack roll and damage roll that he or she makes against the target before the end of his or her next turn. The power bonus equals your Charisma modifier.
Cruel Cut Style (Cruel Cut style is Dragon Magazine 373):
Furious Smash (warlord): If your ally hits with the attack this exploit provides, the target takes ongoing damage equal to your Wisdom modifier (save ends).
Disciple of Torment (Book of Vile Darkness pages 1-31):
Benefit: Enemies grant combat advantage while subject to effects caused by you that a save can end.