Sorry. You had already won, and I had already played my card since you asked if I had anything, and I did, after you had won. So, as I said. Your turn.
Actually, no. You win this one. Or do you? Ability Card Activate! Subterra! I lost by less than 100Gs, so the Gate Card stays in the arena, and our Bakugan go to our used pile. So, yes, I countered, and succeeded. Your turn.