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 - $7.000
Lightly Played - $5.600
Moderately Played - $4.900
Heavily Played - $4.200
Damaged - $3.500
Near Mint Spanish - $7.000
Lightly Played Spanish - $5.600
Moderately Played Spanish - $4.900
Heavily Played Spanish - $4.200
Damaged Spanish - $3.500
Foil Prices
Near Mint Foil - $9.100
Lightly Played Foil - $7.300
Moderately Played Foil - $6.400
Heavily Played Foil - $5.500
Damaged Foil - $4.600
Near Mint Foil Spanish - $9.100
Lightly Played Foil Spanish - $7.300
Moderately Played Foil Spanish - $6.400
Heavily Played Foil Spanish - $5.500
Damaged Foil Spanish - $4.600