Community

Dack's Duplicate
Creature — Shapeshifter
You may have this creature enter as a copy of any creature on the battlefield, except it has haste and dethrone. (Whenever it attacks the player with the most life or tied for most life, put a +1/+1 counter on it.)
Rulings (13)
Dethrone doesn't trigger if the creature attacks a planeswalker, even if its controller has the most life. The same is true if the creature attacks a battle, even if its protector has the most life.
Jul 28, 2023
If the copied creature has X generic mana in its mana cost (such as Grenzo, Dungeon Warden), X is considered to be 0.
May 29, 2014
Any enters-the-battlefield abilities of the copied creature will trigger when Dack's Duplicate enters the battlefield. Any "as [this creature] enters the battlefield" or "[this creature] enters the battlefield with" abilities of the chosen creature will also work.
May 29, 2014
Legality
Formats by platform
Commander
Competitive
Community & retro
Printings (4)
2X2#198$0.37
Double Masters 2022
2X2#483—
Double Masters 2022