Casting Cost: Card Text: 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 may loyalty counters on The Aetherspark" +1: Attach The Aetherspark to up to one target creature you control
Still, the best spices to pick from are often you own, so having a few decent activated abilities for you to choose from your graveyard might be a good idea
Crypt Ghast is an awesome Commander that fits perfectly into decks with plenty of Swamps at the ready
Its a bit pricy for a commander but can helm a strong midrange strategy focused on efficient spells and interaction
I very nearly cut the hexproof dudes all-together, in favour of a more protective tools like Spellskite and Mother of Runes, but there just isn't the space for such luxuries
Also Jin-Gitaxias works similar to Y'shtola just worse, it's another great inclusion but is currently $5