Phyrexian Altar + Cathars' Crusade
Produces: Infinite +1/+1 counters on most creatures you control, Infinite ETB, Infinite LTB, Infinite colored mana, Infinite death triggers, Infinite sacrifice triggers
- Color identity
- W
Steps
- Activate Phyrexian Altar by sacrificing the persist creature.
- When the persist creature dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
- When the persist creature enters, Cathars' Crusade triggers, putting a +1/+1 counter on each creature you control.
- Repeat
How to execute this combo
The "Phyrexian Altar + Cathars' Crusade" combo takes 4 steps in order. Make sure you have the mana open and permanents listed in the prerequisites before you start — opponents can respond between steps.
The end result: Infinite +1/+1 counters on most creatures you control, Infinite ETB, Infinite LTB, Infinite colored mana, Infinite death triggers, Infinite sacrifice triggers.
Practice the line offline: lay out the cards, walk through each step, and note where you can lose the combo (summoning sickness, lack of priority, removal on a key permanent). In game, announce each step clearly; in casual play you can offer to shortcut after demonstrating the loop.
The best window is a turn when opponents are tapped out or after they commit a spell — hold protection (a counter, Vexing Shusher) if the combo wins on the spot.