As long as The Aetherspark is attached to a creature, The Aetherspark can't be attacked and has "Whenever equipped creature deals combat damage during your turn, put that many loyalty counters on The Aetherspark." +1: Attach The Aetherspark to up to one target creature you control. Put a +1/+1 counter on that creature. −5: Draw two cards. −10: Add ten mana of any one color.
NM-Mint Foil - $76.30
Lightly Played Foil - $72.50
Moderately Played Foil - $68.70
Heavily Played Foil - $61.10
Damaged Foil - $49.60
NM-Mint Foil Non English - $76.30
Lightly Played Foil Non English - $72.50
Moderately Played Foil Non English - $68.70
Heavily Played Foil Non English - $61.10
Damaged Foil Non English - $49.60