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.
Near Mint - $10.90
Lightly Played - $9.80
Played - $7.70
Heavily Played - $6.60
Damaged - $5.50
Near Mint Non-English - $10.90
Lightly Played Non-English - $9.80
Played Non-English - $7.70
Heavily Played Non-English - $6.60
Damaged Non-English - $5.50
Foil Prices
Near Mint Foil - $19.70
Lightly Played Foil - $17.70
Played Foil - $13.80
Heavily Played Foil - $11.80
Damaged Foil - $9.90
Near Mint Foil Non-English - $19.70
Lightly Played Foil Non-English - $17.70
Played Foil Non-English - $13.80
Heavily Played Foil Non-English - $11.80
Damaged Foil Non-English - $9.90