Name: Untamed Wilds
Circles: Earth / Augmentation
Description: Forests, jungles and swamps start spreading slowly consuming all-non ocean terrain squares. All animal and earth units gain a bonus to their attack, defense and saves. Additionally wild game has a chance to spawn on any forest square near your city that doesn't already have one.

Notes: I like large scale terraforming spells but this also makes earth units stronger and adds wild game to offset the food production you might lose from the loss of plains. Could be biomancy too.

ATM I'm neutral on this spell. This spell clearly benefits some factions more than others.