Summon Elemental

Summon Elemental is a level 4 Summonings spell which summons an elemental of either fire, water, air, or earth into existence. The type of elemental summoned varies based upon the contents of the tile you attempt to summon it from. While only the Summonings and Spellcasting skills are necessary to cast the spell, the friendliness of the summoned elemental is based entirely upon your skill in the associated elemental magic school:

Iron elementals cannot be summoned, except by the Iron Giant.

Strategy

• One convenient aspect of some elementals is that they are immune to the kind of damage you are most likely going to be slinging around the battlefield. Air elementals have complete immunity to all Air Magic. Fire elementals are mostly immune (though Bolt of Magma or Fire Storm will make short work of them). Earth and water elementals have no immunity to their school's magic, so try not to hit them with friendly fire. However, all elementals are immune to poison, so if you're willing to use Poison Magic, Poisonous Cloud pairs up well with elemental summoning.
• Certain evocable items can be used to imitate this spell for a single element: the lamp of fire, the phial of floods, the stone of tremors, and the fan of gales.
• Summoning an Earth elemental removes the square of rock wall that was used to create it. It can thus be used as a 1-square-at-a-time Dig.

History

Summon Elemental was removed in 0.15

Prior to 0.11, Merfolks had lower chances of summoning unfriendly Water elementals.