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Nillious (ニリアス, Niriasu?) is a hydra/dragon hybrid Bakugan that appears in Bakugan Battle Planet. He is the Guardian Bakugan of Magnus Black. He evolves into Hyper Nillious.



The double-headed Nillious main motive in brawls is to kill - not to win. He does not like fighting as a team with his partner, Nillious is out to satisfy only himself. He likes to go rogue. Each head has its own personality & ability. Untamable & vicious, Magnus has his hands full keeping Nillious in line.


Bakugan: Battle Planet

Bakugan: Armored Alliance

Bakugan: Geogan Rising


In the show, more specifically the shorts, it is noticeable that the heads have their own personalities if you squint. The left head (orange eyed one) seems to be a bit less maniacle, and slightly more timid, than the right head (green eyed one). The right head (green eyed one) also seems to be the one that wants to pick a fight more often. In all honesty, both heads are quite mischivous, as they obviously enjoy to prank, irritate, or mock others- their favorite subject being Drago. The right head (green eyed one) has even been seen mocking Magnus, to the best of his ability, which the left head (orange eyed one) enjoyed- this was in the short released only in Japan so far.

As Titan Nillious, Nova seems to be more belligerent and unpredictable than Shadow, as he seems to attack mainly while Shadow defends and has even shown to try and charge into Dan until Magnus demanded him to stop, trying to break free Tiko's control.

Physical Game

Attribute B-Power
Darkus 200B (Ultra - AA), 300B (Core - GR), 400B (Core - BP), 500B (Core - AA/Ultra - GR), 600B (Ultra - BP)
Pyrus 100B (Core - BP), 200B (Ultra - BP), 500B (Ultra - AA), 600B (Core - AA)
Aquos 300B (Core - BP), 500B (Ultra - AA), 600B (Core - AA)
Ventus 400 (Core - BP), 400B (Core - AA), 800B (Ultra - AA)
Haos 300B (Core - BP), 400B (Ultra - BP), 400B (Ultra - AA), 600B (Core - AA)
Aurelus 500B (Core - BP), 600B (Core - AA), 600B (Ultra - AA)
Diamond 600B (Core - AA), 1500B (Ultra - BP)

Ability Cards

  • Shadow Breath
  • Pact of Darkness
  • Darkus Blast (Dark Blast)
  • Reflection: Reflects an opponent's attack.
  • Darkus Assault
  • Hero's Demise
  • Shadow Hue
  • Shadow Ambush
  • Darkusfist
  • Block and Bite
  • Tripele Blazing Barrge
  • Nillious Annihilator



  • Nillious bears a strong resemblance to Dual Hydranoid due to both being two-headed dragon Bakugan.
    • Additionally, their owners also wore a mask and were Darkus Brawlers.
  • Nillious' left head has one horn and green eyes, while his right head has two horn and orange eyes.
    • Nillious' third head has three horns and magenta eyes.
  • In Bakugan: Armored Alliance, Nillious' appearance changed:
    • His wings became more organic-looking, as they were mechanical-looking wings before.
    • His heads became a little bulkier and each head looks almost identical.
  • In Bakugan: Geogan Rising, Nillious gains a third head and two more legs.