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 - $3.000
Lightly Played - $2.400
Moderately Played - $2.100
Heavily Played - $1.800
Damaged - $1.500
Near Mint Spanish - $3.000
Lightly Played Spanish - $2.400
Moderately Played Spanish - $2.100
Heavily Played Spanish - $1.800
Damaged Spanish - $1.500
Foil Prices
Near Mint Foil - $3.700
Lightly Played Foil - $3.000
Moderately Played Foil - $2.600
Heavily Played Foil - $2.300
Damaged Foil - $1.900
Near Mint Foil Spanish - $3.700
Lightly Played Foil Spanish - $3.000
Moderately Played Foil Spanish - $2.600
Heavily Played Foil Spanish - $2.300
Damaged Foil Spanish - $1.900