Legend of Runeterra annoying bug fix and urgent balancing required!!!

In attack phase, you get a chance to cast burst and fast spells before damage phase only if the opponent choose blockers, but you don't get that chance to cast fast spells and burst before damage phase if the opponent do not choose a blocker. This is very angering when you where supposed to win on that turn no matter which blockers your opponents choose but if he don't choose one I can't cast my spells to get extra damages in time and the opponent laugh at me when he see I had those spell to have lethal but had no chance to cast them because my opponent use that bug to his advantage, preventing me from casting my spells. This is really broken, I almost uninstalled the game in a burst of rage and anger because of this bug just now. Please fix that bug. If you do the game will be very good and I might invest some money in it after you guys balance the game currently I think that frostbite and stun deck are overpowered. Those stun all spells are broken, too powerful it's as if you had no minion....unless you have 5+ attack minions. That stun all 4- attack enemies is way to powerful in my opinion along with those burst freeze spells that are technically almost as strong as the destroy spell that cost 7.