Skylanders Giants Characters Grouped by Element

Here is a quick rundown "photographically" of the line-up for Giants:

The Giants

Thumpback, Bouncer, Crusher, Ninjini, Hot Head, Eye-Brawl, Tree Rex, Swarm

LightCore 

Chill, Drobot, Prism Break, Pop-Fizz, Eruptor, Hex, ShroomBoom, Jet-Vac

Air Element

Swarm, LightCore Jet-Vac, Sonic Boom, Whirlwind, Lightning Rod, Jet-Vac

Earth Element

Crusher, LightCore Prism Break, Terrafin, Bash, Prism Break, Flashwing

Fire Element

Hot Head, LightCore Eruptor, Ignitor, Eruptor, Flameslinger, Hot Dog

Life Element

Tree Rex, LightCore ShroomBoom, Stealth Elf, Zook, Stump Smash, ShroomBoom

Magic Element

Ninjini, LightCore Pop-Fizz, Spyro, Wrecking Ball, Double Trouble, Pop-Fizz

Tech Element

Bouncer, LightCore Drobot, Drill Sergeant, Trigger Happy, Drobot, Sprocket

Undead Element

Eye-Brawl, LightCore Hex, Cynder, Chop Chop, Hex, Fright Rider

Water Element

Thumpback, LightCore Chill, Slam Bam, Zap, Gill Grunt, Chill