A humanoid-shaped behemoth of heat and flames approaches; each arm and leg of this being ending in the howling face of a fire elemental.
AC 28, touch 17, flat-footed 19 (+9 Dex, +11 natural, –2 size)
Str 27, Dex 29, Con —, Int —, Wis 11, Cha 1
A fire elemental construct is immune to any spell or spell-like ability that allows spell resistance. In addition, certain spells and effects function differently against the creature, as noted below.
Any water-based spell of 5th level or higher deals 1d6 points of damage per caster level to the fire elemental construct. The construct can attempt a Fortitude save (DC 10 + spell level + caster's relevant ability score modifier) to half the damage.
Any fire-based spell or effect heals 1 point of damage on the fire elemental construct for each 3 points of damage the attack would otherwise deal. If the amount of healing would cause the construct to exceed its full normal hit points, it gains any excess as temporary hit points.