The idea of the Mystery Booster is that you dont know what cards you are going to get until you open it up the mystery is a feature of the product
At the beginning of combat on your turn, you may have target opponent gain control of target permanent you control
(It's an artifact with " , , Sacrifice this token: You gain 3 life.") Whenever you create a token, put a +1/+1 counter on target creature you control other than Rosie Cotton
Apocalypse Runner Blitzwing, Adaptive Assailant Carrion Cruiser Cryptcaller Chariot Cyclonus, Cybertronian Fighter Damocles Base, Sword of Kang Debris Beetle Demonic Junker Dreadmobile Dune Drifter Flamewar, Streetwise Operative Foreboding Steamboat Grond, the Gatebreaker Haunted Hellride Megatron, Destructive Force Mukotai Soulripper Phantom Train Phoenix Fleet Airship Ripclaw Wrangler Starscream, Seeker Leader The Falcon, Airship Restored The Fire Nation Drill The Last Ride Thundering Broodwagon Tundra Tank