CommanderModernLegacyVintage
Result
Infinite +1/+1 counters on a creature, Infinite ETB, Infinite LTB, Infinite death triggers, Infinite sacrifice triggers
Activate Phantom Train by sacrificing Glen Elendra Guardian.
When Glen Elendra Guardian dies, its undying ability triggers, returning it from your graveyard to the battlefield without a +1/+1 counter on it due to its replacement effect.
Resolve the Phantom Train ability
Repeat.
Component Cards
How It Works
1
Activate Phantom Train by sacrificing Glen Elendra Guardian.
When Glen Elendra Guardian dies, its undying ability triggers, returning it from your graveyard to the battlefield without a +1/+1 counter on it due to its replacement effect.
Resolve the Phantom Train ability
Repeat.