Najeela and Sword of Feast and Famine on the battlefield.
Sword of Feast and Famine attached to Najeela.
Najeela does not have summoning sickness.
An opponent is unable to block and kill Najeela.
Lands you control can tap to produce at least ({W} magic symbol) ({U} magic symbol) ({B} magic symbol) ({R} magic symbol) ({G} magic symbol) .
Steps
Declare Najeela as an attacker, attacking an opponent unable to block and kill it.
Najeela triggers, creating a 1/1 Warrior creature token that is tapped and attacking.
Deal combat damage with Najeela.
Sword of Feast and Famine triggers, causing the defending player to discard a card and you to untap all lands you control.
Activate all lands you control by tapping 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.