Activate Ashnod's Altar by sacrificing Sally Pride, adding CC.
When Sally Pride dies, Nim Deathmantle triggers, causing you to pay 4 to return Sally Pride from your graveyard to the battlefield and attach Nim Deathmantle to it.
When Sally Pride enters, it triggers, creating at least one creature token.
Activate Ashnod's Altar by sacrificing a creature token, adding CC.