Surly Badgersaur and Mind Over Matter on the battlefield.
You have at least two additional land cards in hand.
({W} magic symbol) available.
Steps
Activate Secluded Steppe's cycling ability by paying ({W} magic symbol) and discarding it.
Surly Badgersaur's second ability triggers, creating a Treasure artifact token.
Resolve the Secluded Steppe ability, causing you to mill three cards and return Life from the Loam from your graveyard to your hand.
Activate Mind over Matter by discarding a land card.
Surly Badgersaur's second ability triggers, creating a Treasure artifact token.
Resolve the Mind over Matter ability, untapping target artifact, creature or land.
Repeat from step 4 one additional time.
Activate the three Treasure tokens by tapping and sacrificing them, adding ({1} magic symbol) ({G} magic symbol) ({W} magic symbol) .
Cast Life from the Loam by paying ({1} magic symbol) ({G} magic symbol) , returning Secluded Steppe and two other lands from your graveyard to your hand.
Repeat.
Results
Infinite self-mill.
Near-infinite magecraft triggers.
Near-infinite mana permanents you control can produce.