To hide play selection from opponent:
Press Up, Up at the play select screen.
No field boarders:
As the team are matching up during the game is loading press
Circle, Circle, X, Left.
Unlimited turbo:
Press L1, L1, L1, L1, L1, Triangle, Circle, Circle, Circle,
Circle.
We have more cheats and tips for this game here, Magic: The Gathering - BattleMage cheats
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