Oh, levitate does not have indoor/outdoor cast restrictions. At least, not according to the spell data. Here is a list of spells this *should* effect, based on their spell data:
Code:
143 Sunbeam
169 Pack Spirit
220 Spirit of Cheetah
247 Camouflage
250 Harmony
252 Invoke Lightning
253 Whirling Wind
257 Starshine
258 Treeform
278 Spirit of Wolf
418 Lightning Strike
420 Lightning Blast
424 Scale of Wolf
425 Wolf Form
426 Greater Wolf Form
427 Form of the Great Wolf
428 Share Wolf Form
520 Dizzying Wind
600 Illusion: Spirit Wolf
601 Illusion: Tree
717 Selo`s Accelerando
793 Fist of Air
874 JourneymanBoots
895 Ink jet
987 Spiroc Thunder
988 Greater Spiroc Thunder
1286 Expedience
1330 Selo`s Song of Travel
1340 TravelerBoots
1554 Spirit of Scale
1562 Form of the Howler
1563 Form of the Hunter
1564 Spirit of Oak
1565 Mask of the Hunter
1604 Breath of Karana
1606 Fist of Karana
1670 Velocity
1750 Selo`s Song of Travel
1776 Spirit of Wolf
1821 Bolt of Karana
1921 Acting Spirit I
2002 Grease Injection
2007 Selo`s Song of Travel
2157 Word of Command
2517 Spirit of Eagle
2524 Spirit of Bih`Li
2605 Selo`s Accelerating Chorus
2733 Summon Horse
2782 Holy Steed
2783 Unholy Steed
2862 Summon Horse
2863 Summon Horse
2864 Summon Horse
2865 Summon Horse
2866 Summon Horse
2867 Summon Horse
2868 Summon Horse
2869 Summon Horse
2870 Summon Horse
2871 Summon Horse
2872 Summon Horse
2873 Summon Horse
2874 Summon Holy Steed
2875 Summon Death Charger
2916 Summon Horse
2917 Summon Horse
2918 Summon Horse
2919 Summon Horse
2920 Summon Horse
2921 Summon Horse
2922 Summon Horse
2923 Summon Horse
3185 Flight of Eagles
3438 Karana's Rage
3579 Share Form of the Great Wolf
3580 Spirit of Ash
3586 Illusion: Scaled Wolf
3601 Harmony of Nature
3813 Summon Drogmor
3814 Summon Drogmor
3815 Summon Drogmor
3816 Summon Drogmor
3817 Summon Drogmor
3818 Summon Drogmor
3819 Summon Drogmor
3820 Summon Drogmor
3821 Summon Drogmor
3822 Summon Drogmor
3823 Summon Drogmor
3824 Summon Drogmor
3825 Summon Drogmor
3826 Summon Drogmor
3827 Summon Drogmor
3828 Summon Drogmor
3829 Summon Drogmor
3830 Summon Drogmor
3831 Summon Drogmor
3832 Summon Drogmor
4242 Mist of the Wolf
5146 Bootstrutter's Blessing
5316 Tranquility of the Glade
5347 Nature's Serenity
5597 Squid's Ink
6584 Mass Illusion: Spirit Wolf
6588 Mass Illusion: Scaled Wolf
8355 Activate Roboboar
8442 Immortal Bolt