Chaos Shrines Black Crystal is a very nice value engine indeed, for a wide range of black decks
// Vigilance On turns where the effect of Summon: Yojimbo's second or third chapter ability is applying, your opponents can choose not to attack with a creature that must attack if able as long as there is no other player, planeswalker, or battle for that creature to attack that wouldn't require a cost
Snapcaster Mage: Without one- and zero-mana cantrips, this guys too much of a mid to late game card, and the body doesnt have enough upside here to warrant it
While this is a decent card overall for spider tribal, it's still somewhat lackluster as a commander
And for the collectors out there, prepare to be dazzled by showcase frames, extended art cards, and foil-etched treatments elevating the visuals of key cards