Well lessee...
not sure why Cold/Winter warrants it's own domain, but here goes...
Winter Domain Spells
1st level: Ray of Frost, Fog Cloud
3rd level: Darkvision, Gust of Wind
5th: Nondetection, Sleet Storm
7th: Fire Shield [Cold Shield only], Ice Storm
9th: Cone of Cold, Wall of Ice
Use the Nature Domain powers, as is.
Trade Domain
Trade Domain Spells
1st: Comprehend Languages, Identify
3rd: Locate Object, Zone of Truth
5th: Glyph of Warding, Tongues
7th: Freedom of Movement, Locate Creature
9th: Legend Lore, Teleportation Circle
Use the Trickery Domain with the following alterations:
Replace Blessings of the Trickster with Blessings of the Merchant: At 1st level you can use your action to touch a willing creature other than yourself to give it advantage on Charisma (Persuasion) checks. This blessing lasts for 1 hour or until you use this feature again.
2nd: Channel Divine: Invoke Duplicity, as is.
6th: Channel Divine: Cloak of Shadows, as is.
8th: Replace Divine Strike with Beguiling Defenses: You are immune to being charmed, and when another creatures tries to charm you, you can use your reaction to attempt to turn the charm back on that creature. The creature must succeed on a Wisdom save against your cleric spell save DC or be charmed by you for 1 minute or until the creature takes any damage.
17th: Replace Improved Duplicity with Visions of the Past from the Knowledge Domain.
