Najeela, the Blade-Blossom, and Luxurious Locomotive

Prerequisites

• Najeela, the Blade-Blossom on the battlefield
• Luxurious Locomotive on the battlefield
• You control at least five creatures with total power 1 or greater
• An opponent cannot block and kill Luxurious Locomotive
• Luxurious Locomotive does not have summoning sickness

Steps

1. Activate Luxurious Locomotive's crew ability by tapping five 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 as an attacker
3. Luxurious Locomotive triggers, creating at least five Treasure tokens
4. Holding priority, activate five Treasures by tapping and sacrificing them, adding
5. Activate Najeela by paying , untapping all attacking creatures, giving them trample, lifelink and haste, and gaining an additional combat phase after this one
6. Repeat from step 2 each combat phase

Results

• Infinite ETB
• Infinite colored mana
• Infinite combat phases
• Infinite creature tokens with haste
• Infinite Treasure tokens