I've tried playing this game three or four times and it has locked up every time. It seems that you can often cause the game to freeze if you're a fire mage and shoot a fire ball then click anywhere else before the fireball hits its target and/or before whatever you've shot finishes exploding.
The amount of lag on this game is ridiculous. My computer is about a year old, and on a size 86 planet filled with mines the lag is so bad that I literally cannot play.
When you run out of moves and it has to reshuffled the token, you need to stop the clock. If that happens three times in a round you can't really match anything.
I love how 6 billion coins mysteriously disappeared and then, after I failed to find any explanation of why that would happen and so tried to edit the .sol to put them back, I now cannot earn any yellow coins at all. 1/5? Oh yes.
Buggy game. "Middle Mess" Dark Mode does not take you to dark mode. I got the achievement for beating all easy mode levels without getting the one for beating half of the easy mode levels. I got the ones for spending 2,000 and 3,000 bubbles in a single level without getting the one for spending 1,000 bubbles in a single level. I got the two for doing 500 and 1,000 damage in a single shot without getting the one for doing 100 damage in a single shot.
Once you have flood, it's easy: level the land so there are a few castles, then build the land up higher than your enemy's and flood until most of your enemies are dead. From there it's a simple mop-up.
You can try to reduce the lag by right clicking -> More game settings, and adjusting settings as you please.