Greater Paraelemental of Rain

Second edition AD&D failed to make paraelementals for Dark Sun, so I will be creating some. I started with the lesser paraelementals and now it is time to end with the greater paraelemental of rain. I hope they were found useful.  Feedback is welcome.

Rain Elemental by HoiHoiSan

 Stats after the jump.



Greater Rain Paraelemental
Climate/Terrain: Overcast, Rainy, or Shaded Areas
Frequency: Very Rare
Organization: Solitary
Activity Cycle: Any
Diet: Water Vapor
Intelligence: Average (8-10)
Treasure: Nil
Alignment: Neutral
No. Appearing: 1
Armor Class: 1
Movement: Fl 26 (A)
Hit Dice: 10, 14, or 18
Thac0: 10 Hit Dice: 11
            14 Hit Dice: 7
            18 Hit Dice: 5
No. of Attacks: 1
Damage/Attacks: 5-40
Special Attack: See Below
Special Defense: +3 or better weapon to hit
Magic Resistance: 50%/25%
Size: L-H (8'-16')
Morale: 10 and 14 Hit Dice: Champion (15-16)
             18 Hit Dice: Fanatic (17-18)
XP Value: 10 Hit Dice: 7,000
                 14 Hit Dice: 11,000
                 18 Hit Dice: 15,000

Greater Rain Paraelemental
A greater rain paraelemental resembles rain drops in a vaguely humanoid shape with lighting running through it. Rain paraelementals enjoy watering plants and electrocuting and freezing those who harm plants.
Combat
In combat, the greater rain paraelemental uses its lightning bolts to harm its enemies. These rays have a range equal to the greater rain paraelementals hit dice in yards. These lightning bolts may jump between targets that are using metal weapons or wearing metal armor. A target using metal weapons or wearing metal armor, within a number of feet equal to the hit dice of the greater rain paraelemental must make a saving throw vs breath weapon or take the same amount of damage as the primary target.
The greater rain paraelemental may forgo it's attack and instead cast a cone of cold spell as a caster of the paraelemental's hit dice. The rain elemental may do this an unlimited times per day.
Greater rain paraelementals possess an ability which allows them to turn into gigantic rain storms upon command. When using this ability, the paraelemental’s appearance changes to that of a large storm cloud. This cloud is 45’ high. The greater rain paraelemental’s width when in this form is dependent on its Hit Dice. Greater rain paraelementals of 10 Hit Dice are 50’wide , those of 14 Hit Dice are 70’ wide, and 18-Hit Die elementals are 90’ wide. Creating and dissipating this form takes one whole turn.
Once created, the storm lasts for three melee rounds and allows the grater rain paraelemental to attack every target underneath it with lighting bolts that cause 2d8 damage. In addition, the storm saturates the area with rain.
Greater Rain paraelementals can be struck only by +3 or better weapons, and they’re immune to the effects of cold and lightning. If wounded in some way, a rain paraelemental finds succor in rainy environments. When in contact with natural rain, it automatically heals 1d10 hit points per round, up to its normal maximum.