Winter's Champion( Frostburn, p. 50)
Your paladin spell list is enhanced.
Paladin level 1st,
When you gain this feat, you may add the 1st-, 2nd-, 3rd-, and 4th-level spells granted by the Cold and Winter domains as paladin spells of the same levels. You do not gain the ability to cast spells of these domains of 5th level or higher, nor do you gain the granted powers of the domains.
If you have any levels of cleric, these additional domains are not available to your cleric levels, since they are technically paladin spells in this case.