Activate Soratami Mirror-Mage by paying ({3} magic symbol) and returning Gaea's Cradle and two other mana-producing lands from the battlefield to your hand, returning Omnath from the battlefield to your hand.
Omnath enters the battlefield, triggering itself, causing you to draw a card.
Activate Patron of the Moon by paying ({1} magic symbol) , putting Gaea's Cradle and another mana-producing land from your hand onto the battlefield tapped.
When the lands enter the battlefield, Omnath triggers twice and Amulet of Vigor triggers twice.
Resolve both Omnath triggers, causing you to gain 4 life and add ({W} magic symbol) ({U} magic symbol) ({R} magic symbol) ({G} magic symbol) .
Resolve both Amulet of Vigor triggers, untapping the lands that entered the battlefield.
Activate Gaea's Cradle by tapping it, adding at least ({G} magic symbol) ({G} magic symbol) ({G} magic symbol) .
Activate the additional land by tapping it, adding ({1} magic symbol) .
Activate Patron of the Moon again by paying ({1} magic symbol) , putting the third land from your hand onto the battlefield tapped.
When the land enters the battlefield, Omnath and Amulet of Vigor trigger.
Resolve Omnath's trigger, dealing 4 damage to each opponent and each planeswalker you don't control.
Resolve Amulet of Vigor's trigger, untapping that land.
Activate that land by tapping it, adding ({1} magic symbol) .