Elemental

Beings formed of pure, elemental matter (air, earth, fire, or water) that can be summoned from their plane of origin to serve a magic-user.

AC2 [17] / 0 [19] / –2 [21], HD8 / 12 / 16* (36 / 54 / 72hp),
Att 1 × blow (1d8 / 2d8 / 3d8), THACO 12 [+7] / 10 [+9] / 8 [+11],
MV 360’ (120’) flying, SV See main entry (8 / 12 / 16),
ML 10, AL Neutral, XP 1,200 / 1,900 / 2,300, NA 1 (1),

• Size: 4’ tall, 16’ across / 6’ tall, 24’ across / 8’ tall, 32’ across.
• Water-bound: Must remain within 60’ of water.
• Harm creatures in water: Inflict extra 1d8 damage.

Source: Classic Fantasy