Dragon, Green Great Wyrm (CR 23)
Gargantuan Dragon (Air)
Alignment: Always Lawful Evil
Initiative: +0; Senses: blindsense 60 ft., darkvision120 ft., low-light vision, and keen senses
AC: 43 (-4 size, +37 natural), touch 6, flat-footed 43
Hit Dice: 38d12+304 (551 hp); DR: 20/magic
Fort +29, Ref +21, Will +27
Speed: 40 ft., fly 200 ft. (clumsy), swim 40 ft.
Space: 20 ft./15 ft. (20 ft. with bite)
Base Attack +38; Grapple +64
Attack: 1 Bite +48, 2 claws +43, 2 wings +43, 1 Tail Slap +43, 1 crush +43, 1 Tail sweep +43 melee; Breath +48 ranged
Damage: 1 bite 4d6+14, 2 claws 2d8+7, 2 wings 2d6+7, 1 tail slap 2d8+21, 1 crush 4d6+21, 1 tail sweep 2d6+21, Breath weapon 2d6 (37)
Special Attacks/Actions: Breath weapon, fear (DC 35), SR 30
Abilities: Str 39, Dex 10, Con 27, Int 22, Wis 23, Cha 22
Special Qualities: Command plants, Plant growth, Suggestion, Acid immunity, water breathing, CL 17
Feats: #Feats: 13
Skills: Skill Points: 456
Advancement: 39+ HD (Gargantuan)
Climate/Terrain: Temperate and warm forest and underground
Organization: Solitary, pair, or family (1-2 and 2-5 offspring)
Treasure: Double Standard
Breath Weapon (Sun): A green dragon has one type of breath weapon, a cone of corrosive (acid) gas (Reflex save for half damage DC 37) 24d6 acid damage. Using a breath weapon is a standard action. Once a dragon breathes, it can't breathe again until 1d4 rounds later. A blast from a breath weapon always starts at the dragon's mouth and extends in a direction of the dragon's choice.
Water Breathing (Ex): The dragon can breathe underwater indefinitely and can freely use its breath weapon, spells, and other abilities while submerged.
This subtype usually is used for elementals and outsiders with a connection to the Elemental Plane Air. Air creatures always have fly speeds and usually have perfect maneuverability (see the section on Movement).