(Equipment, Auras you control, and counters are modifications.) : Create a 5/5 red Dragon Spirit creature token with flying
If the creature has 2 or less power, it will get two free +1/+1 counters on it so it can fight properly
(Even though it will probably be like turn 12 or something by then.) Oh, you can also freely attack with your eight-powered turtle, because vigilance, so that's cool too
When Stromkirk Mystic deals combat damage to the opponent, its controller exiles the top card of their library
Blue decks are going to want a way to get the first poison counter onto an opponent so they can start proliferating, and this can easily help you get in for the last few points of damage or poison
A deck designed around Henry Wu wants to ensure you have plenty of cards that trigger off of your creatures dying, while also proving plenty of ways to generate non-Human creature tokens to keep the value pile going