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.
Near Mint - $4.000
Lightly Played - $3.200
Moderately Played - $2.800
Heavily Played - $2.400
Damaged - $2.000
Near Mint Spanish - $4.000
Lightly Played Spanish - $3.200
Moderately Played Spanish - $2.800
Heavily Played Spanish - $2.400
Damaged Spanish - $2.000
Foil Prices
Near Mint Foil - $4.900
Lightly Played Foil - $4.000
Moderately Played Foil - $3.500
Heavily Played Foil - $3.000
Damaged Foil - $2.500
Near Mint Foil Spanish - $4.900
Lightly Played Foil Spanish - $4.000
Moderately Played Foil Spanish - $3.500
Heavily Played Foil Spanish - $3.000
Damaged Foil Spanish - $2.500