Deal combat damage to at least three opponents, triggering
Grim Hireling, creating two Treasure tokens for each opponent dealt combat damage.
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) , causing you to untap all attacking creatures you control, give them lifelink, trample and haste, and get an additional combat phase after this one.
Repeat from step 2 each combat phase.
Notes
The combo fails to produce enough mana once you have two or fewer opponents.