Kasmina, Enigmatic Mentor Protection
An indestructible 6/5 enchantment creature for four mana, Purphoros only counts as a creature if its controller's devotion to red is five or greater, making it a headache to remove from play
Casting prepared Brainstorm is better than actual Brainstorm, since you don't use up a card when you do it, and this can do it repeatedly
But you do have some fetch lands, and just getting a counter roughly every turn provides an excellent advantage
Going in chronological order, from oldest to newest cards as of the printing featuring the funny flavor text
Reward: Wonder Hourglasses x12, Shop Tickets x10 Paradox Drive Museum 1 How to beat: Collect the One-Star variants of the following cards from the Paradox Drive expansion: Snom, Flittle, Iron Boulder, Glimmora, Raging Bolt and Hawlucha