Infinite LTB, Infinite ETB
Cast Dack's Duplicate by paying its mana cost, choosing to have it enter the battlefield as a copy of Felidar Guardian
When Dack's Duplicate enters the battlefield, it triggers, blinking Felidar Guardian.
When Felidar Guardian enters the battlefield, it triggers, blinking Dack's Duplicate. Choose to have Dack's Duplicate enter the battlefield as a copy of Felidar Guardian.
Repeat from step 2.
Component Cards
How It Works
Cast Dack's Duplicate by paying its mana cost, choosing to have it enter the battlefield as a copy of Felidar Guardian
When Dack's Duplicate enters the battlefield, it triggers, blinking Felidar Guardian.
When Felidar Guardian enters the battlefield, it triggers, blinking Dack's Duplicate
Choose to have Dack's Duplicate enter the battlefield as a copy of Felidar Guardian.
Repeat from step 2.