MTG : Legal combo? well I won with it either way :P?

Lets say I play Damnation. I already have 2 Calciderms a Twilight shephard and a 2/1 Dusk Urchins on the field. I play Dread Returns flashback cost and sacrifice every creature except Twilight Shephard. I "go fishing" for a Puppeteer Clique I get the card draw off of Dusk Urchins and my creatures back from Twilight Shephard as well as 2 Calciderms and my opponents Cemetery Puca.