Any fire + ice build is popular.
Ice damage: either Blizzard or Orb
Fire damage: Fireball, Firewall or Meteor.
So there are 6 different combinations to choose from. Just pick your favour.
Build:
20 into Ice damage
20 into fire damage
enough points to bring Cold mastery to -100% (It is about 10~12 points for budget gear)
20 into one of the following:
- 20 fire mastery if going for Meteor or Firewall, or
- 20 fireball’s synergy and 1 fire mastery if going for Fireball
Ofc, 1 into the teleport, Static Field and shield.
Then use the rest of the points to buff either Fire damage or ice damage by dump into synergy.