Panther is an Inostrancevia. He was Susan's first creature.
Panther's card, along with the Crimson Flame Move Card, winded up in China. When a fisherman mistook his Card Capsule for an Easter Egg, he threw it into a fire, activating him. He tried to attack the fisherman, but was driven off when the fisherman flicked his pole like a whip. The locals mistook him for a dragon, and a group was sent out to chase him off. This group met Team Monster, who asked for a description of him. He attacked them, smashing a truck aside before charging. He then battled Morto, and lost easily due to an Element disadvantage, He was immediately summoned to chase off Derek. The next episode, he battled a Scutosaurus, but lost. He was later revealed to be a 3 on the Power Scale.The next episode, he battled a Coelurosauravus, and used the Element disadvantage to defeat him in a spectacular fire tornado. The next episode, he battled a Carboniferous Arachnid, and won with the same technique. The next episode, he battled an Arthropleura, but lost. Three episodes later, he battled a Dodo and won easily using the fire tornado. The next episode, he battled a Parasite, and won easily with the Fire Tornado. The next episode, he participated in a battle royal, but was defeated by the Fusion Move Double Aqua Javelin. The next episode, he participated in another battle royal. He lost again. The next episode, he battled a Future Predator and won easily using the Fire Tornado. The next episode, he battled a trio of Deinonychus, but was defeated. The next episode, he battled a Precambrian Worm, but lost easily. The next episode, he battled a Smilodon but lost. After the Smilodon's capture, he was removed from the team.
Panther had the first copy of this powerful move in his Card Capsule, and it was activated along with it. He always uses it at the beginning of his battles.
Panther has never won against anything other than a Wind element.