May I interject a thought? Regarding the masks in regards to the Toa's elemental power. Now mind you I have not exactly followed the story as closely as virtually anyone else on this site due to lack of owned resources back when Bionicle came out and until recently I had no knowledge of the "Great beings" or other Toa teams story wise. My knowledge consisted of "Ok, new versions of the Toa, Eh, don't really like how they look so wont get them." As a child with no income of my own while I heard about the comics and books, I didn't know they continued the story of the Online game and the movies. Now that I have basically discredited anything I am about to say lets get started . From what I understand the Toa's masks are not pinnacle to their elemental powers in regards to what mask they are currently wearing. Only that they are wearing any mask at all. Now seeing as how there are several ranks of masks (Great > Noble > powerless) I do not know if wearing a different ranked mask would limit a Toa's natural elemental power. Now mind you I am referring to my limited knowledge of the Toa Mata. Regarding the other Toa teams this may be the case, however seeing as how a Toa of (Element) has to be created from a Matoran of that same element It seems unlikely changing ones mask would change their element. I say this in response to who said, "Mask of Fire" The Masks themselves grant an ability associated with it. Taho's Mask of Shielding, Pohatu's ask of Speed. Naturally Anyone who puts on the mask of speed and has the ability to access that power will move fast. Pohatu himself is not inherently fast just because that is his Original Mask. He only become fast when activating that mask power; As would any Toa or Turaga respectively. So why would one think as such? Am I wrong in Assuming this? Now regarding Activation of their elemental powers. Yes As each Toa are made from Matoran (Toa Mata may be an exception as I don't know if there is any story regarding them being Matoran or if they were created as Toa, thus the element related names.) They would already have inactive or suppressed elemental powers. Again the masks are not required to have this power, only to access it. Think of it like the Transformation to great ape in DBZ. All Sayins have this power in them, however they cannot access it without their tail. The same can be true here. Regarding Tahu's dislike of his weapon prior to putting on his mask. Yes it would seem that the mask activated his power as is seen when his sword ignites. However I have to ask... Did Tahu dislike his sword prior because he could not get it to light or perhaps because it was unwieldy due to him being in a weakened state both from his trip and not having his mask on? This question in itself can lead to the answer you seek regarding if a Toa's elemental power is repressed without their mask or if it is just a matter of being too physically weak to access without a mask on. Now if you read up on the differences between the Matoran Toa and Turaga in regards to their ability to access their elemental powers you can get a hint at this answer. Matoran: Have latent elemental power that manifests itself in different waysFire = Resistance to heat.Ice = Resistance to cold.Water = Enhances lung capacity.Earth = Night vision, strengthStone = Strength, durabilityAir = Enhanced AgilityToa: Usually something to do with controlling the element or creating it.Turaga: Limited version of Toa's ability.Now we can see here that as the body changes so does the individual's abilities with their element. Now if you read up on the Masks themselves all they say is that their respective powers diminish from Great to Noble. Nothing to do with one's element. That being said, wearing a specific level of mask doesn't modify one's elemental ability only their body does. Now what does that mean regarding a Toa's ability regarding having a Mask or not? Well if I may I think it is a physical weakness not a mental one. The mental aspect only conforms to accessing a masks power, not the element of the individual. Being that the mask is a biological part of the Matoran species and thus all "evolutions" there after. Now over time I suspect not wearing a mask would physically weaken the Toa, they need a mask period to access their elemental power. I guess in all it means both answers are correct unless otherwise stated by a character themselves or somebody in authority on the subject in question says otherwise. Not having a mask weakens the Toa and their access to their elemental power as shown with Pohatu and his barriers. While the mask in question does not matter, though I don't think a Toa would ever be caught wearing a powerless mask. Having any mask on at all is the key.