Jaina is a powerful hero that provides boosts to your spells. Keep her alive to maximize her effectiveness. You will want to have high-level spells in your deck to make it work.
Tauren: Primary tank, used to push the lane.
Huntress: Primary DPS, used to push behind Tauren.
Gryphon: Secondary damage dealer, can take care of air units.
Blizzard: Stops enemies in their tracks.
Chain Lightning: High damage dealing spell.
Holy Nova: Help keep Jaina alive and damage units.