- "Be Afraid of the Bark!"
- —Tree Rex's official catchphrase
Long ago before the Giants protected Skylands, Tree Rex was a majestic tree living peacefully in the ancient woods. But this tranquil peace came to an end when the Arkeyans built a nearby factory to produce war machines. After years of his soil being poisoned by the magic and tech waste from the factory, he mutated into who he is now - a powerful Giant who will crush anything that threatens the natural order of things.
After being mutated by the factorial waste of both the Magic and Tech element, not only was Tree Rex turned into a lumbering behemoth, he was also gifted with the power to fire lasers from his right arm cannon and enhance his right arm to grow spikes to slam down on surrounding enemies to deal more damage.
- "Giants rule!"
- "Lean and mean!"
- "Up I go!"
- Tree Rex was the first Giant revealed in the debut trailer of Skylanders: Giants.
|Spyro - Sparx - Hunter - Sgt Byrd - Agent 9 - Sheila - Bentley - Blink|
|The Legend of Spyro series|
|Spyro - Cynder|
|Spyro the Dragon (Dark) (Legendary) - Gill Grunt - Trigger Happy (Legendary) - Cynder - Terrafin|
- Stealth Elf (Legendary) - Chop Chop (Legendary) - Eruptor - Ignitor (Legendary) - Prism Break - Stump Smash - Flameslinger - Zap - Ghost Roaster - Voodood - Bash (Legendary) - Sonic Boom
- Drobot - Boomer - Whirlwind (Polar) - Dino-Rang - Zook - Wrecking Ball - Sunburn - Camo - Wham-Shell - Slam Bam (Legendary) - Drill Sergeant - Lightning Rod - Warnado -
Double Trouble (Royal) - Hex - Pop Fizz (Punch) - Jet-Vac (Legendary) - Shroomboom - Chill (Legendary) -
Flashwing (Jade) - Sprocket - Fright Rider - Hot Dog (Molten)
Roller Brawl - Countdown