Helping my wife with reign of winter

[Michael Talley 759]

our group is pretty fire heavy and my wife is looking to make an encounter in book 2 of the set with a young white dragon more challenging for everyone.

Group
1 Aasimar Fire Kinetic
1 Kitsune Bard
1 Elf Druid with wolf
1 Sulis Mesmerist
and myself Ulfen Invulnerable Rager (Barbarian)
where all level 6 right now and in the clock tower.

So I am helping by drawing up an item for the big bad at the end encounter.
Young White Dragon.

just wondering if others can suggest some extra encounters for her to add or items to add to treasure troves to stand out to the group.

So the item I came up with instead of a Ring of straight out Fire resistance.

I came up with.

Amulet of Protection from Fire
[CL 5, Market Price: 6,000 GP, Craft Cost: 3,000 GP, Requires: Craft jewelry, Protection From Energy]
Per Day the Amulet provides 60 Points of protection against Fire.

So that'll give it an extra 60HP versus fire since it can already hit hard and breathe cold that should make this encounter pretty dangerous.

She specifically wants to add an item to the treasure horde for the mesmerist any suggestions?

[Darrell Impey UK]

Don't let ot come in to land, keep it circulating around the tower and breathing ice. Cuts out the wolf, limits the barbarian (probably).

[*Thelith]

Make the conditions icy and shape the terrain in such a way that it limits the PCs. Also make the weather super low visibility due to snow, the PCs can't see to Target the dragon flying above but the dragon can see perfectly for flyby attacks or breath weapon.

[Michael Talley 759]

Battle went well :-) thanks for the advice.

We've gotten to the last of Book 2 of the AP and in 2 week's we'll be starting book 3.