Ghalta and Mavren + Aggravated Assault + Phyrexian Altar

Ghalta and Mavren
Aggravated Assault
Phyrexian Altar

Requires
Ghalta and Mavren must be on the battlefield. Aggravated Assault 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. Move to your postcombat main phase.
  4. Activate Phyrexian Altar five times by sacrificing five Vampires, adding 3.
  5. Activate Aggravated Assault by paying 3, causing you to untap all creatures you control and to get an additional combat and main phase after this one.
  6. Repeat.
Results
Infinite colored mana. Infinite combat phases. Infinite creature tokens. Infinite death triggers. Infinite ETB. Infinite LTB. Infinite mana creatures you control can produce. Infinite sacrifice triggers. Infinite untap of creatures you control.

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