oh, also, a good way to win: use only your hero and spells at first, until you have all units, or your hero is about to die, whichever's first, then retreat your hero and send out the rest.
I Disagree with both badgermole and Iwaspeanut. I think 1 and 2 were so-so, But I enjoy the fresh new challenge. all the other two required were upgrading your bow a lot. this requires more strategy. it only gets a 4 though, because titan units make it lag, or freeze.
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