Luxurious Locomotive, Ruthless Technomancer, Port Razer, and Woe Strider

Prerequisites

• Luxurious Locomotive on the battlefield
• Ruthless Technomancer on the battlefield
• Port Razer on the battlefield
• Woe Strider on the battlefield

Steps

1. Activate Luxurious Locomotive's crew ability by tapping seven creatures you control with total power 1 or greater, causing Luxurious Locomotive to become an artifact creature until end of turn
2. Declare Luxurious Locomotive and Port Raazer as attackers, triggering Luxurious Locomotive, creating at least seven Treasure tokens
3. Deal combat damage using Port Razer, triggering its ability
4. Holding priority, activate Woe Strider by sacrificing Port Razer
5. Resolve the Port Razer ability, untapping all creatures you control and causing you to get an additional combat phase after this one
6. Activate three Treasures by tapping and sacrificing them, adding
7. Activate Ruthless Technomancer by paying and sacrificing four Treasures, returning Port Razer from your graveyard to the battlefield
8. Repeat from step 2 each combat phase

Results

• Infinite LTB
• Infinite ETB
• Infinite colored mana
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite scry 1
• Infinite combat phases
• Infinite untap of creatures you control
• Infinite mana creatures you control can produce
• Infinite Treasure tokens