You have others who can do things like make an entire village fall asleep, trap a person in place just by looking at them, be literally impossible to hit. And you just can’t be frozen.

Imagine if you’re fighting Kopaka Nuva and you’re like Haha I cannot be frozen because my entire body is antifreeze! And he just freezes the air around you and traps you in a giant block of ice. Technically you’re not frozen but you can’t move and can’t generate sufficient momentum to break out.

At least a Rahkshi of Fire Resistance can swim in volcanoes and effectively ignore the existence of fire and any other attacks. But you can still take physical damage from an ice blade or block smashing into your head. Only your Kraata body burns at the touch mind you, your Rahkshi armor doesn’t carry that trait.

Like okay Heat Vision and Laser Vision are the same. Electricity is just a shittier version of Chain Lightning, the same goes for Power Scream and Sonics. But at least you can do something with those.

I bet Kraata Kal originally had the power of Ice Resistance before Teridax transformed him. He of course selected a Kraata like that for the experiment, because of course a power like Ice Resistance was considered expendable. Accuracy had too much utilitarian usage, Magnetism can just make every biomechanical being implode like a tin can. And even though Kraata-Kal became more powerful than any Rahkshi, I can imagine why he’d resent his father so much for even cursing him with that shortcoming to begin with.

Makuta Servaela is a Makuta who specializes in intelligent Rahi, especially ones who can speak Matoran. It was she who created Keetongu's species, a species who could remove Hordika venom (whom she created for the sole purpose of getting vengeance on Chirox due to Chirox's relentless bullying Servaela).

She was also known for considering herself smarter than her brothers and repeatedly defying orders passive aggressively if she considered them illogical. When the Makuta were called to destroy her Hagah, she decided that ridding herself of guardians was a stupid idea, and instead trapped them in the crystals she wears around her neck, to be awoken at a later time. The other Makuta didn't realise her Hagah were still alive in the crystals, and presumed this was just dark humour on her part of wearing her guardians' corpses as an accessory as a threat to any future servants who dare disobey her. Teridax mostly just put up with her shit because her Rahi were useful enough to him, and because her defiance of him was never direct.

When the Plan was announced, her first course of action began to gain as much information about the Mata Nui from Mutran as she could (a feat not difficult, as he had a soft spot for her). She used this to create a plan of her own, and obeyed Teridax until the Great Cataclysm, in which she carried out her plan: She left the Mata Nui, residing on Aqua Magna as an aquatic creature with plans to wait out Teridax's "immature power-grab".

When the planets were reunited, she migrated to the Bota Magna portion and released her Hagah, who knew nothing except that they had gone to sleep in their Makuta's lab and woken up in a cave somewhere else. They are completely oblivious to even the concept that Makuta had turned evil.

She continues to this day ignoring/avoiding everyone and performing her research.

So provided your vehicle contains the minimum of required parts, and you remember to feed and water your angry slug, you never need to worry about fuel.

More pics of my DIY Bionicle keychains. I made these using two Rakshi sets that arrived to me with chewed up pieces and cracked joints.

It works.