Okay, this one is may get me a little hassle on being "mono," but if it has ONLY water cards than it's mono.
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Now the strategy is quite simple. Physalia is a great card. Basically 3 damage a turn for only 1 water quantam. One of its damage can't be blocked, so it's a VERY good card. The Crawlers are cheap and strong. For only 5 water quantam you can have out a 6/6 creature. This won't be eaten by any pesky Otyughs for a while, so you have two good turns to hit with it before it'll possibly die. Now the dragons are for some serious damage. They're a bit slow to get out, but really you don't need more than 2 out in any game. The congeals should be obvious... freeze any pesky enemy creature for four turns and keep laying the hurt down.
Disclaimer: Everyone's going to have a slightly different win %. Don't bother coming to me after 1 game and saying you have a win % of 0. Skillgannon is not responsible for your bad playing. If you don't know how to think a little before you click a mouse, then just leave.