I also think the Curse spell should have an added sentence that states that if a Target hit 0T it is considered dead. Just so it is stated somewhere cause it just feels more natural that if you have no T what so ever you cant do shit and therefor is considered dead.
And there is a problem with the Mage Blast. It states it is Range 3. and that it targets any 2 monsters on the same square or squares adjacent to each other. It however have no cost and doesnt say what it does I guess it has 1 mana cost and I guess it takes away 1 HP for each monster if the mages Attack is higher then the monster T. But maybe it should be more clearly stated?