The following is an example of Discrepencies in the evolution process in Reign of Dragons that make it impossible to exactly predict the Base ATK/DEF at each evolution stage. It is not difficult however, to predict Base ATK/DEF to within 2% of its actual value using the 1.2 / 1.4 / 1.8 rule given earlier.
ATK/DEF Ratio vs Previous Evolution
|ATK/DEF Ratio vs Base Card|
|880 / 1080||1.0000 / 1.0000||1.0000 / 1.0000|
|1060 / 1290||1.2045 / 1.1944||1.2045 / 1.1944|
|1240 / 1510||1.1698 / 1.1705||1.4091 / 1.3981|
|1610 / 1950||1.2984 / 1.2914||1.8295 / 1.8056|
|Card||Base ATK/DEF||ATK/DEF Ratio vs. Previous Evolution||ATK/DEF Ratio vs Base Card|
|960 / 1160||1.0000 / 1.0000||1.0000 / 1.0000|
|1150 / 1390||1.1979 / 1.1983||1.1979 / 1.1983|
|1350 / 1630||1.1739 / 1.1727||1.4063 / 1.4052|
|1740 / 2100||1.2889 / 1.2883||1.8125 / 1.8103|
Even if we assume that Rounding causes the difference between the 1.8295 multiplier in Card #1 and the 1.8125 multiplier in Card #2, fleshing out that idea shows that either Card #1 should have final base attack of 1600, or that Card #2 should have a base attack of 1750. There is no magic number between 1.8000 and 1.8300 that would produce results that round to 1610 for Card #1 AND produce results that round to 1740 for Card #2.
Due to this discrepancy we must assume that either not all of the information used to calculate these values is given to the player, or that the numbers are chosen arbitrarily by Reign of Dragons Staff.
- It does deserve mention that while both of these cards have the same cost, realm, and rarity... one is a Melee attack card and one is a Magic attack card. It is quite possible that different Type cards have different evolution mathematics, but I find it odd that they would go to the trouble of programming multiple evolution scales that are less than 1% different from each other.