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.