

This elder warrior was once regarded as the greatest of all Thundercats by Lion-O himself.

It is possible that Thunderians and Third Earth natives measure time differently or centuries must've passed while the ThunderCats made their journey in stasis to Third Earth after Thundera's destruction, while Grune himself made it there first through the power that was used to banish him.Grune is said to have been active on Third Earth centuries ago, which would put his fight with Jaga as having taken place even before that despite Jaga not looking any different than he did in the first episode.However the Star of Thundera (which Grune knows the location of) has the power to nullify the effects of Thundrainium, but what this entails is anyone's guess. Despite being a Thunderian, Grune is completely immune to Thundrainium and in fact actually seems to become more powerful from it.Grune has also been known to use a sword, as seen in ThunderCats Ho! - Part V during his fight with Jaga. This makes it an effective and deadly weapon to use against the ThunderCats. Grune wields a Spiked Mace which he himself forged out of Thundrainium. Driven by these vile ambitions, he fails to think things through and lets his emotions get the better of him. Grune's weakness is his greed and insatiable lust for power. Since his death, his spirit form grants him even more strength and the ability to materialize and dematerialize as he pleases as well as turn invisible.ĭespite being a ThunderCat and hailing from Thundera, Grune is seemingly invincible to Thundrainium, a substance which severely weakens and is potentially lethal to all ThunderCats, including the spirit of Jaga. He also has the strength and agility of a ThunderCat. In hand to hand combat he is very adept and able to use any weapon that he can get his hands on. However, as he was losing, Lion-O gave Jaga the Sword of Omens, and then his own strength, allowing Jaga to defeat Grune once again. They fought again, but the Thundranium Mace drained the strength of Jaga, weakening him and turning the battle against him. Since the ThunderCats could not fight a ghost, they needed the help of another ghost, Jaga - which was what Grune had wanted the whole time, a rematch. It was this episode that first showed Cheetara using her gift of sixth sense, and she was able to retell his history. The ThunderCats tried to use the Sword of Omens to figure out who he was, but the sword showed nothing. He used the Thundranium to forge his Spiked Mace (how he managed to do this when Thundranium affects all Thunderians was never explained). He wandered to Fire Rock Mountain to gather what Third Earthlings called "Fire Rocks", which were in reality Thundrainium. He swore vengeance on the ThunderCats and Jaga. When two foolish Bolkins, Hurrick and Bundun, broke the symbol, however, Grune was freed. When Grune died, there was a magical symbol placed on his tomb which prevented his spirit from escaping. It is unknown how long ago this took place on Third Earth as the two Bolkins recited the story, saying it was centuries ago. Grune found his way to Third Earth and wreaked havoc and despair.

He banished Grune from Thundera in what appeared to be a crystal-like container. The two fought, and Jaga was the stronger one. It was in that war when Jaga faced Grune in hand to hand combat. He and Jaga were once close friends and allies, but greed and the hunger for power overtook Grune, and he led a group of marauders and waged a war with the ThunderCats. Grune the Destroyer) is an anthropomorphic saber-toothed tiger. For the article about the 2011 version of this character, see Grune (2011).
