Each Play Booster contains 14 Magic: The Gathering cards, including 14 cards of rarity Rare or higher, 36 Uncommon cards, 69 Common cards, and 1 Land card
Windcrag Siege fits in famously, and with Firebender Ascension it's only the trigger from the attacking creature, but it counts
It comes loaded with four abilities, each one designed to punish your opponents further as the game progresses
The bonus is in the Afterlife, as it will provide you with one 1/1 Flying Spirit creature when it dies
Pair this with ways to cheat big artifacts out and have some fun
Mistrise Village and Outrageous Robbery out of the sideboard do give a new angle of attack, at least, though battling against decks with lots of counter magic is still difficult