Maze of Ith, and Krosan Restorer

Prerequisites

• Maze of Ith on the battlefield
• Krosan Restorer on the battlefield
• Krosan Restorer does not have summoning sickness
• You control a mana-producing land
• You have at least seven cards in your graveyard

Steps

1. Declare Krosan Restorer as an attacker
2. Activate Maze of Ith by tapping it, targeting Krosan Restorer
3. Resolve the Maze of Ith ability, untapping Krosan Restorer and preventing all combat damage dealt to and by it this turn
4. Activate Krosan Restorer's second ability by tapping it, untapping Maze of Ith and any other land you control
5. Activate a mana-producing land by tapping it, adding at least
6. Repeat

Results

• Infinite mana lands you control can produce
• Infinite untap of lands you control