Tuff Golems are able to traspass blocks smaller than a full block.

There are also two bugs related to tuff golems, one with capture nets, the other of their AI, that should be fixed in order to achieve the quality Origin Realms should achieve. These are separate suggestions from other users.

In this case, I consider the video explains it better than anything. To resume, changing their states of being static or not makes them able to trespass blocks smaller than a full block.

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IGN: ItsJustAWildKid

Discord: @wildplacedpixel