CommanderLegacyVintage
Result
Infinite ETB, Infinite LTB, Infinite colored mana, Infinite death triggers, Infinite sacrifice triggers
Activate Phyrexian Altar by sacrificing Chaos Spewer.
When Chaos Spewer dies, its undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
When Chaos Spewer enters the battlefield, it triggers, putting a -1/-1 counter on it.
Repeat.
Component Cards
How It Works
1
Activate Phyrexian Altar by sacrificing Chaos Spewer.
When Chaos Spewer dies, its undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
When Chaos Spewer enters the battlefield, it triggers, putting a -1/-1 counter on it.
Repeat.