
Profession: New GM |

Hi guys,
I need advice and help on a high level build for the culmination of a campaign that started about a year ago.
Spoilered bec of length
I was playing Shattered Star up to level 11 then I needed to take a break because of school and work load.
I had a Wiz 11, and there was a point in the game where it was logical my character was able to leave, with a piece of an artifact no less.
I can rejoin that game now and the group is more or less Level 15.
We had a DM for the first four adventures, all in all from level 1 to 11 there were only two party deaths.
Then I had to take a break, at the same time one of the other players became DM for the last two adventures and the former DM is now a player.
In the combat with the Big Bad Guy at the end (an Elder Wyrm Blue Dragon),
These were the fatalities,
Inquisitor, Grey Gardener level 14 (died 3x in the same combat)
Fighter, HellKnight level 13 (died 2x in the same combat)
Ranger/Rogue, level 13 (died in combat)
Fighter, Grey Maiden, Level 11 Cohort of the Inquisitor, (brought to -5 or worse, almost died)
Survivors
Cleric of Serenrea level 13
Wizard with good aligned PrC, 14
Dwarf Automaton, with Monk Level (we think 11) the Ranger's 'butler' (ineffective in final combat)
Advance Clay Golem (ineffective in final combat)
I think the party used a Limited Wish and three Breath of Life's and they barely made it.
Here is the what i need help with, I am rejoining the group and the DM said he will up the combat.
I have a level 11 Wiz about to level up to 15 and have feats and magic I can buy, what suggestions do you have?
Feats like Wand Like Staff are great.
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Wizard Level 15 Admixture Evoker
Has Craft Wondrous as a Feat
Has these items and has gold to burn!!
Headband Int +6
Rod Quicken (Lesser)
Rod Empower
Rod Selective
Amulet of Natural Armor +3
Cloak of the Mountbank/Resistance +3
One of the Seven Shards of an Artifact
Several Scrolls
234,100 gp to spend on Magical Items!