You control at least one additional creature, and at least one basic land.
Steps
Activate a basic land by tapping it, adding ({1} magic symbol) .
Activate Perilous Forays by paying ({1} magic symbol) and sacrificing another creature, searching your library for a land with a basic land type and put it onto the battlefield tapped.
When the land enters the battlefield, Nesting Dragon triggers, creating a 0/2 Dragon Egg creature token.
Activate Earthcraft by tapping the Dragon Egg, untapping the basic land.
Activate a basic land by tapping it, adding ({1} magic symbol) .
Activate Perilous Forays by paying ({1} magic symbol) and sacrificing the Dragon Egg.
When the Dragon Egg dies, it triggers, creating a 2/2 Dragon creature token.
Resolve the Perilous Forays ability, searching your library for a land with a basic land type and put it onto the battlefield tapped.
Repeat from step 3.
Results
Put all lands with a basic land type from your library onto the battlefield tapped.