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.
Near Mint Foil - £42.00
Lightly Played Foil - £35.70
Moderately Played Foil - £29.40
Heavily Played Foil - £21.00
Damaged Foil - £12.60
Near Mint Foil Non English - £42.00
Lightly Played Foil Non English - £35.70
Moderately Played Foil Non English - £29.40
Heavily Played Foil Non English - £21.00
Damaged Foil Non English - £12.60