Skirk Prospector and Decaying Soil on the battlefield.
({1} magic symbol) ({R} magic symbol) available.
Steps
Cast Mogg War Marshal, creating a 1/1 Goblin when it enters the battlefield.
Sacrifice Mogg War Marshal to the Skirk Prospector, generating ({R} magic symbol) , triggering Decaying Soil's ability, and creating another 1/1 Goblin.
Use the ({R} magic symbol) to pay for Decaying Soil's ability to return Mogg War Marshal to hand.
Sacrifice the 2 Goblin tokens to Skirk Prospector to generate ({R} magic symbol) ({R} magic symbol) to recast Mogg War Marshal.