Share 'The most surprising (in a good way) disc you have thrown/owned.'

I have seen discussions here lately about disappointing discs, or the best from each company, but not one where you got a disc and were surprised at how well it worked. I have to say for me it is a Champion Viking 172 gr. I only got this disc after getting a 35$ voucher for winning a tourney. He had mostly Innova, I throw mostly Discraft. He didn't have any Innova I was familiar with except heav…