You may have Spark Double enter the battlefield as a copy of a creature or planeswalker you control, except it enters with an additional +1/+1 counter on it if it's a creature, it enters with an additional loyalty counter on it if it's a planeswalker, and it isn't legendary if that permanent is legendary.
![Spark Double [Commander Masters] | Grognard Games](http://grognardgames.com/cdn/shop/files/cdbb32db-fb1d-4f47-a258-fa1a0a00bd76.png?v=1753430536)
