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
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.
Declare
Luxurious Locomotive as an attacker.
Luxurious Locomotive triggers, creating at least five Treasure tokens.
Holding priority, activate five Treasures by tapping and sacrificing them, adding ({W} magic symbol) ({U} magic symbol) ({B} magic symbol) ({R} magic symbol) ({G} magic symbol) .
Activate
Najeela by paying ({W} magic symbol) ({U} magic symbol) ({B} magic symbol) ({R} magic symbol) ({G} magic symbol) , untapping all attacking creatures, giving them trample, lifelink and haste, and gaining an additional combat phase after this one.
Repeat from step 2 each combat phase.
Notes
You may attack with a Warrior each combat phase to get infinite creature tokens with haste.