hmm, its been quite a while.. i'll calculate quick... well. i'll tell you how to do it. you'll be doing only cutting this way, so think of it this way. each clay knife is 513 mage logs, so, you need 21,368 mage long (u) using these so 21,368/513 = ~42 clay knives, or 14 hours of stealing creation if u get enough points for 1 tool per game maybe a little less time, if you get like 24 points per game, they'll add up. I hope i helped! join my cc if you ever have any questions. I know a lot about this game i've had quite a few accounts(: TSG Samuel