In this area its much easier to get that kind of winrate – try it between 5 and Legend and tell me your new winrate. Im sure it will decrease under 60%.

The Miracle cant do 74% now – maybe at the beginning of the season. Currently maybe 55% with some luck on the EU ladder.

Good idea but your win rate will decrease because the card is to slow…. overall it would damage the optimized mecanics.