Najeela, the Blade-Blossom + Ghalta and Mavren + Phyrexian Altar

Najeela, the Blade-Blossom
Ghalta and Mavren
Phyrexian Altar

Requires
Najeela, the Blade-Blossom must be on the battlefield. Ghalta and Mavren must be on the battlefield. Phyrexian Altar must be on the battlefield. You control at least six creatures that can attack this turn. An opponent cannot block and kill creatures you control.
Steps
  1. Declare at least six creatures you control as attackers.
  2. Ghalta and Mavren triggers, creating at least six 1/1 Vampire creature tokens.
  3. Activate Phyrexian Altar five times by sacrificing five Vampires, adding .
  4. Activate Najeela by paying , untapping all attacking creatures, giving them trample, lifelink and haste, and gaining an additional combat phase after this one.
  5. Repeat each combat phase.
Results
Infinite colored mana. Infinite combat phases. Infinite creature tokens. Infinite death triggers. Infinite ETB. Infinite lifegain. Infinite lifegain triggers. Infinite LTB. Infinite sacrifice triggers.

Najeela, the Blade-Blossom
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