Which moves were removed, added, or heavily changed in Legends: Z-A?

Question

changed as in, changed function or purpose

Comments

How do you define "heavily changed", since every move has been modified for the real time battle. Would, say, stealth rock count as heavily changed. Also, I think Light of Ruin is the only move that was added to my knowledge. (Nvm, Nihil Light was also added)

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changed function or purpose

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there are slightly less than 900 removed moves, a full list of which can be found here:

https://pokemongohub.net/post/guide/pokemon-legends-z-a-moves/#:~:text=List%20of%20Removed%20Moves

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Holy moly, that’s a lot of removed moves

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Wow, Gen 9 added a lot of moves

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@Bird what do you mean by Nihil Light?

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Spoilers but it's mega zygardes new move that core enforcer becomes

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Thanks (no sarcasm)