My favorite offensive character is the Drool. Its ST is 10 X number of Water spaces owned, and if that's not bad enough,the damage is penetration. I have gotten up to 400 ST with it. My favorite defensive creature is Undine. Its HP is 20 X number of water spaces owned, and it neutralizes water. I have gotten 800 HP with this one.
I was playing on the Kazatega map. I thought that i might get a medal for turning all lands one color and having all of them at level 5. Unfortunately, I didn't get anything so i was a huge waste of time. About 5 hours worth, my total g at the end of the game was over 500 K.
Unless you play a bunch of Holy Word cards, I don't see any value in playing "HP/ST = 10 x number of land type you control," because I never, ever land on the lands I need to control for chains, because I always get the worst dice rolls possible.