Okey-dokey, to answer your question...
Celestial Fury, location ----> Guarded Compound in the Temple District, 2nd Floor. Have to fight a group to get it.
Blade of Roses, location ----> Copper Coronet in the Slums District, Bernard sells it when you complete the Slaver quest.
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If not a Sorcerer, then a Paladin.
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Baldur's Gate Item Mart