Hi, in an Outlaws of Thunder Junction quick draft match today, Rodeo Pyromancers added mana to my mana pool, but the game would not let me cast a spell with it. I had Rodeo Pyromancers on board, four mana-producing lands on board, a one mana spell in hand, and a five mana spell in hand. In my first main phase, I cast the one mana spell, and the Rodeo Pyromancers trigger added two red to my mana pool in response. Rather than allowing me to cast my five mana spell with the two red for Rodeo Pyromancers and the three untapped lands on my board, the game only gave me the option to move to combat, and no cards in my hand were highlighted. I can find no reasons on any of the cards involved to explain why the five mana spell could not be cast at that time. I had the appropriate mana available, an empty stack in my main phase, and no other casting restrictions that I could see on the cards involved or from the board state. Thanks!