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{{obsolete}}{{Spell
|name=Tornado
|level=9
|school1={{Air Magic}}
|school2=
|school3=
|castingnoise=7
|spellnoise=~15 (depends on radius and delay of your last action)
|sources=<div>
*[[Book of the Tempests]]
*[[Book of the Sky]]
</div>
}}

{{flavour|Turns the air around the caster into a mighty vortex, doing tremendous damage to everyone caught in it. Those affected will also be swept up into the air and tossed around. Only the eye of the storm is a safe place, and it follows the caster. The spell's effectiveness is greatly diminished in closed areas. After the tornado fades, it cannot be called forth again for a short time.}}

'''Tornado''' is a level 9 [[Air Magic]] spell which creates a vortex of raging wind around you.

==Useful Info==
Tornado creates [[cloud]]s of raging wind, dealing a base of <code>9d(pow/15)</code> physical damage per 1.0 turn.

The damage is then adjusted by:
* Percentage of tiles open. In tight spaces, damage is reduced. Damage is multiplied by the ratio, <code>(tiles with wind) / (tiles that could have wind)</code>.
* "Duration-radius" factor. Creatures on the outside of the vortex will receive the most damage.

Tornado's radius is equal to <code>sqrt([[aut]]_passed) * 7/5</code>, max. 5 tiles. Creatures and [[cloud]]s caught inside will rotate in a counterclockwise fashion. The "rotation" is a square shape, and done at a rate of ~1 full rotation per 6 turns.

While casting the spell, the caster and anything caught inside will [[fly]] for a short period of time. Once it ends, there's a grace period of 1 turn until flight ends. Monsters won't make any effort to avoid falling into [[deep water]] or [[lava]].

Tornado lasts for 6 turns. It immediately ends if you [[blink]] or [[teleport]], or if you enter another floor. After it ends, it has a cooldown of 3.5 - 4.5 turns.

Creatures with rTornado ([[Sojobo]], [[air elemental]]s) are immune to this spell. Also, those who are currently casting Tornado are immune to hostile Tornadoes.

==Strategy==
While Tornado has worse damage/turn than other level 9 spells, it has great MP efficiency and irresistible damage. For a single, 9 MP cast, you'll get up to 6 turns of damage. Plus, you can cast other spells while the tornado is running. Great in an open area, especially against crowds.

The downsides (other than damage/turn) mostly stem from the tornado mechanic itself. It is much weaker in a cramped area. For most of the duration, the tornado has a short radius. And, the spell has a lengthy cooldown.

As a single school spell, Tornado is easier to train than the likes of [[Fire Storm]]. Regardless, as a level 9 spell, it is a significant XP investment (for a 3 rune game). In a 3 rune game, training for a level 9 spell usually means sacrificing on your defenses. But, for a low-range, damage over time spell that excels in open areas, you'll want good defenses. Tornado can still be worth it, but don't rush for it.

===Tips & Tricks===
*When the radius is 5, the amount of noise is 15. This number is multiplied by the delay of your last action (in [[aut]]s) and divided by 10.
*Any [[tree]]s within Tornado's range have a chance of being destroyed by the spell.
*Be careful not to use [[Blink]] while the spell is up unless you specifically want to end its effects.

==History==
*In [[0.27]], Tornado was replaced with [[Polar Vortex]]. Polar Vortex is functionally similar, but is a level 9 [[Ice Magic]] spell which deals 33% more damage and is 40% resistible by cold. rTornado/rVortex was also removed from air elementals and Sojobo.
*Prior to [[0.22]], rTornado was called wind resistance, and also affected [[Airstrike]].
*Prior to [[0.17]], Tornado was a circle (range 6) and rotated circularly.
*Prior to [[0.10]], Tornado was slightly weaker.
*Prior to [[0.9]], Tornado had stronger damage, didn't rotate monsters around, and didn't have a cooldown, but had a negative [[spell enhancer]].
*Tornado was added in [[0.8]].

Tornado - Revision history

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