I do need 1 special spell for each patriarch.
@BCalchet- trying to get the ai to move the appropriate units together to cast those spells would be to hard.
Ah, good point, I always forget about the poor little AI. They could be workarounded as long as they were utility spells and not combat spells by letting the AI check if it has the required units anywhere instead of in a stack, but then again, getting the AI to use utility spells is difficult in itself...
Anyway:
Raising the Depths: (Water 3, Chaos 3, Octopus Overlords Patriarch)
Target a water tile. For three turns, the target tile is a land tile for all intents and purposes. Any aquatic creatures in the tile are killed, while any ships are damaged and rendered unable to move until it wears off. At the end of the three turns, it returns to water, killing any non-water-walking units on it and allowing stranded ships to move again. (Special: If the right tile (a random mid-ocean one chosen at map generation) is targetted, Dread R'lyeh rises from the depths with unforseeable consequences.)
Word of Desecration: (Entropy 3, Fire 3, Ashen Veil Patriarch)
All living non-veil units within a few tiles of the caster are lightly damaged by unholy fire and permanently cursed with a -1 strength promotion (removable with sanctify, dispel, heal, etc). The affected tiles are turned to hell, and all improvements except mines and quarries are destroyed. As an additional cost to cast this spell, you lose one to three random veil-worshipping units you own. Savants are preferred, but if none exist, other living units will be claimed. If no others are around, the Patriarch dies.
Symbol of Wrath: (Spirit 3, Law 3, Order Patriarch)
The next demonic or undead unit to enter combat with the caster is permanently destroyed. No exceptions.
Eternity Rune: (Earth 3, Enchantment 3, Runes Patriarch)
Target mechanical unit gains the 'Immortal' promotion.
(Started writing this post hours ago, then forgot about it - I'll just post what I typed thus far.)