Infinite LTB, Infinite ETB, Infinite colored mana, Infinite sacrifice triggers, Infinite death triggers
Activate Phyrexian Altar by sacrificing the creature with Griffin Guide attached.
When the creature dies, Cass and Griffin Guide trigger.
Resolve the Griffin Guide trigger, creating a 2/2 Griffin creature token.
Resolve the Cass trigger, returning Griffin Guide from your graveyard to the battlefield attached to another creature you control.
Repeat.
Component Cards
How It Works
Activate Phyrexian Altar by sacrificing the creature with Griffin Guide attached.
When the creature dies, Cass and Griffin Guide trigger.
Resolve the Griffin Guide trigger, creating a 2/2 Griffin creature token.
Resolve the Cass trigger, returning Griffin Guide from your graveyard to the battlefield attached to another creature you control.
Repeat.