What percentage of games do you think are decided before they even start?

Im leaning around a good 85-90%. I love the game but I feel theres no skill expression whatsoever with the 20 card 3 point format.

It seems to be rarer and rarer seeing a game go past turn 3. Not sure how much further the envelope can be pushed before battles may aswell be done away with entirely and just simulated based on both players decklist.