DB/SAI: To Rule the Skies

Proper script for Obsidia / Obsidia's Egg for quest http://www.wowhead.com/quest=11078/to-rule-the-skies

Now reagents are taken and Obsidia spawned using correct spells

Ie 

http://www.wowhead.com/spell=41035 (Four Dragons: Force Cast - Obsidia) which is cast on player as invoker cast when gossip option selected which triggers
http://www.wowhead.com/spell=41036 (Four Dragons: Reagents - Obsidia) which requires 35 apexis shards as reagents this deducting these and then triggers
http://www.wowhead.com/spell=40682 (http://www.wowhead.com/spell=40682) which triggers event to spawn

Previous script was not using spells and was using sai to deduct shards and spawn obsidia.