An opponent cannot block and kill enough of your creatures to end the combo.
Steps
At the beginning of combat,
Helm of the Host and
Brudiclad trigger.
Resolve
Helm of the Host's trigger, creating a nonlegendary copy of
Najeela with haste.
Resolve
Brudiclad's trigger, creating a token, then causing all tokens you control to become copies of the nonlegendary
Najeela token with haste.
Attack with at least three
Najeela creatures.
Each
Najeela triggers at least three times each, creating a total of at least nine Warrior tokens that are tapped and attacking.
Activate
Phyrexian Altar at least five times by sacrificing at least five Warrior tokens, adding at least ({W} magic symbol) ({U} magic symbol) ({B} magic symbol) ({R} magic symbol) ({G} magic symbol) .
Pay ({W} magic symbol) ({U} magic symbol) ({B} magic symbol) ({R} magic symbol) ({G} magic symbol) to activate any
Najeela, untapping all attacking creatures, giving them trample, lifelink, and haste until end of turn, and creating an additional combat phase after this one.
Deal combat damage, gaining life equal to the amount of damage dealt.