A player wishes to take 5 levels as a positive cleric (Spontaneous Cure) and 5 levels as a negative cleric (Spontaneous Inflict). In both cases the player wants to trade turn/rebuke for paladin auras. Aura of Courage using the Unearthed Arcana variant. The second trade would be for Aura of Resolve from the paladin of freedom, also from Unearthed Arcana.
The character would be Neutral Good and worship a 2 headed god that (in campaign) spends it's time debating the dueling merits of Law and Chaos.
Are there any game breaking exploits, balance issues, obscure rules, ...ect we need to be aware of, before allowing or banning this? If it matters the next levels are planned to be chameleon or rogue. I think the player wants to use precision damage on weapon-like spells as the center of the build.