Build a school of wizardry on a mystic island and establish a mage population there.
The portal network provides an alternative and instant way to move goods and units between islands. The high seas region hosts your new island and is faster to reach from other regions. 3 new population tiers that you can discover and teach the ways of magic. Over 50 new buildings are waiting to be constructed, some of them even across regions. 3 new units allow for even more combinations to crush your enemies. 5 new custodians give you even more options to experience your playthrough.