Anzrag and Stone-Seeder Hierophant do not have summoning sickness.
({3} magic symbol) ({R} magic symbol) ({R} magic symbol) ({G} magic symbol) ({G} magic symbol) , plus an additional ({2} magic symbol) ({G} magic symbol) if you don't control a commander available.
Steps
Activate Anzrag by paying ({3} magic symbol) ({R} magic symbol) ({R} magic symbol) ({G} magic symbol) ({G} magic symbol) , causing opponents to block Anzrag if able this turn.
Cast Obscuring Haze by paying ({0} magic symbol) if you control a commander, or ({2} magic symbol) ({G} magic symbol) otherwise, preventing all combat damage that would be dealt by opposing creatures this turn.
Declare Anzrag as an attacker, attacking any opponent.
If the opponent does not control a creature, activate Forbidden Orchard by tapping it, adding one mana of any color.
If Forbidden Orchard was activated, it triggers, causing the defending opponent to create a 1/1 Spirit creature token.
If Forbidden Orchard was activated, activate Stone-Seeder Hierophant by tapping it, untapping Forbidden Orchard.
The opponent is forced to block Anzrag, triggering Anzrag, untapping all creatures you control and causing you to get an additional combat phase after this one.
Any combat damage that would be dealt to Anzrag is prevented by Obscuring Haze.