Tier 1: Fire Weakness (T, Unit Enchantment, fire vulnerability), Essence of Fire (S, City Enchantment, +power for volcanos)
Tier 2: Chaos Channels (S, Unit Enchantment, adds a random positive mutation), Exhaust (S, Instant, destroys a mineral)
Tier 3: Drought (S, Terraforming, swamp/forest->plain->desert)
Tier 4: Raise Volcano (S, Terraforming, raises a volcano)
Tier 5: Warp Reality (T, Combat Enchantment, penalties to all non-summons)
Tier 6: Infuse Sun (S, Global Enchantment, slowly dries the plane)
Tier 7: Chaos Mastery (S, Global Enchantment, all units recruited with Chaos Channels)
Tier 8: Great Wasting (S, Global Enchantment, desert, volcanoes and corruption appear on a plane)