Tribe Fortification

Increases primary tribe's ability (attack/power/defense power/HP) by a certain number of levels, and secondary tribe's ability by half as many levels (rounded up).
 * Primary Tribes
 * Elf and Orc are increased by 7 at 5* and 15 at 6*.
 * Human and Undead are increased by 10 at 5* and 20 at 6*.
 * Secondary Tribes
 * Human and Undead are increased by 4 at 5* and 8 at 6*.
 * Elf and Orc are increased by 5 at 5* and 10 at 6*.

Tribe Fortification is only applied on the stages and it's cumulative, but unit's ability cannot increase above +150 levels. Not applied when in Time Shop. This can be changed by Secret Powers activated by certain pets.