Not really. Just a whole bunch of traps, etc to block or mirror damage. There's a penguin that can return itself and one other card to it's owner's hand when flipped (as long as you initiate the flip, not when it's attacked), or just stay on the field and return 2 other cards. Add in a sprite card I forgot the name of that builds attack as long as it stays in defense, and suddenly I'm hitting you for 4500 damage.

The idea is to either guard the sprite until it's strong enough to kill, or just reflect enough damage to win. I was a newbie and was beating veterans with it. Much rage was directed at the penguins :D