New units. Their discussion and selection of upgrades.

Meteor Shower is certainly a great spell. But I prefer to cast chaos with elves using a rain of arrows, and then cast the Might Dragon spell very carefully, paying close attention to the location of the enemy's blood enemies, so as not to harm the troops of the Sylvan faction. Therefore, the Emerald Dragon's immunity is still a less significant advantage than the benefits of Crystal Dragons (for example, they can reach even hidden enemy archers, which can be a pleasant surprise, or not). In any case, with high luck, Crystal Dragons have an excellent chance of hitting 3-4 opponents, and if they are also blood enemies...