Justinbasil.com also includes a speculative list of the cards that may be featured in Surging Sparks , based on images of the cards sourced from promotions for the Japanese sets listed above
Because your commander is so resilient - low cost, only a creature on your turn, and with a built in self-reanimate power, you don't even really need backup reanimators in the deck
[Trigger] You may trash 1 card from your hand: If your Leader has the "Supernovas" type, play this card
Consisting in Lifelink, enchantments and small creatures (referred to as weenies)
Finally, we started an artifact set and felt like the time had come to make them
Whenever you cast an instant or sorcery spell, untap this creature