The Aetherspark is one of the best examples of a single card with multiple types
Volrath, the Shapestealer Because infect creatures deal damage in -1/-1 counters, Volrath, the Shapestealer has lots of options to choose from when it comes to copying creatures
Stalwart Unity is a group hug deck, which basically means that it plays several cards that benefit several players, even opponents
III Draw a card for each tapped creature target opponent controls
When Unwilling Vessel dies, create an X/X blue Spirit creature token with flying, where X is the number of counters on Unwilling Vessel
By itself, youre only able to Pyroclasm the board with this, but chances are youll have some extra energy lying around when you cast Aetherkite