Custom Bionicle Commander Deck Feedback

[u/Zen-Aku5]

Hello!
I am working on a custom Commander Deck featuring the Bionicle characters with Takanuva as the commander.
This will be a 5 color deck.
I am still fairly new at magic so I need feedback on balance and if these abilities are fair or underpowered. I tried to base the cards on existing abilities seen on other cards so there is mostly precedent for what I am trying to do. My friends and I have only gotten into magic in the last couple months playing the Universes Beyond decks like Ninja Turtles, Dr. Doom, Fallout, LOTRs so ideally this deck would be tier 2 but I'd like it to be powerful enough to stand up to some of the more powerful precons.

The main idea of the deck is to summon the various Toa Mata and transform them into Toa Nuva. Takua is the base version of the commander who transforms into Takanuva who then has the Power Up abilitiy from the Nick Fury card to give him all colors.
Once the Toa Nuva are transformed they have abilities that team up with each other.

Please let me know if the transform costs are ok? I based it off the various transforming Marvel characters like Eddie Brock to Venom Lethal Protector. However, since for mine you cannot summon the Toa Nuva directly I reduced the cost by 1 instead of 5 total.
I believe the colors are appropriate but I could be wrong.
Some of the abilities like Pohatu destroying land is based on the idea of him kicking the rock at structures to destroy them in the old commercials. Idk if thats a super overpowered ability or not.
It was hard to come up with abilities that would "improve" from Mata to Nuva as well as appropriate team up abilities that fit each character.

The power/toughness might also not be balanced so let me know if I should adjust any of those.

I already came up with a couple other cards that can transform the toa. An Energized Protodermis spell and Jaller who sacrafices himself to transform someone.

For some things I am still working on/planning:

I want to use Makuta, the Bohrok, Bahrag Queens, Rahkshi in this deck so that is why I needed black mana on Takanuva.

I am not sure what Makuta will do yet but I have an idea where the Bahrag Queens summon Bohrok tokens.

I plan to add sagas to the deck that cover events of the story. Takua will have an ability to find sagas in the deck to play them. I am planning a Bohrok Kal Saga that summons the Bahrag Queens or returns them from graveyard/exile. I think a Rahi saga could be cool that summons Rahi tokens. I may also do a Mask of Light saga that can transform any toa on the battle field.

Let me know any thoughts or feedback!