Activate Eldrazi Displacer by paying 1C, blinking Orcish Bowmasters.
When Orcish Bowmasters enters the battlefield, it triggers, dealing 1 damage to any target and creating a 0/0 Orc Army creature token with a +1/+1 counter on it.
Activate Ashnod's Altar by sacrificing the Orc Army, adding CC.