Dumbest array I've ever made in LaTeX

compiled form: https://i.imgur.com/oDkXgRl.png
uncompiled:
\fontsize{9pt}{-1}
	$\arraycolsep 1pt
	\renewcommand{\arraystretch}{0.5}
	\begin{array}{ccccc}
		\begin{array}{cccccc}
			n\left\{ \begin{array}{c}
			\vspace{-5pt}
				  *    \\
				\vdots \\
				  *
			\end{array}\right.&	&	&	&	&  \\\vspace{-5pt}
			& *      &        &        &        & \\
			& \vdots &        &        &        & \\\vspace{-5pt}
			& *      &        &        &        & \\
			&        & \ddots &        &        & \\\vspace{-5pt}
			&        &        & *      &        & \\
			&        &        & \vdots &        & \\
			&        &        & *      &        & \\\vspace{-5pt}
			&        &        &        & *      & \\
			&        &        &        & \vdots & \\
			&        &        &        & *      &
		\end{array}
		\overbrace{\begin{array}{cccccc}
		\begin{array}{c}\vspace{-5pt}
		*    \\
		\vdots \\
		*
		\end{array}&	&	&	&	&  \\\vspace{-5pt}
		& *      &        &        &        & \\
		& \vdots &        &        &        & \\\vspace{-5pt}
		& *      &        &        &        & \\
		&        & \ddots &        &        & \\\vspace{-5pt}
		&        &        & *      &        & \\
		&        &        & \vdots &        & \\
		&        &        & *      &        & \\\vspace{-5pt}
		&        &        &        & *      & \\
		&        &        &        & \vdots & \\
		&        &        &        & *      &
		\end{array}}^{n^{k-1}}
		\begin{array}{c}
		\\
		\\
		\\
		\\
		\cdots\\
		\\
		\\
		\\
		\\
		\\

		\end{array}
		\begin{array}{cccccc}
		 \begin{array}{c}\vspace{-5pt}
		*    \\
		\vdots \\
		*
		\end{array}&	&	&	&	&  \\\vspace{-5pt}
		& *      &        &        &        & \\
		& \vdots &        &        &        & \\\vspace{-5pt}
		& *      &        &        &        & \\
		&        & \ddots &        &        & \\\vspace{-5pt}
		&        &        & *      &        & \\
		&        &        & \vdots &        & \\
		&        &        & *      &        & \\\vspace{-5pt}
		&        &        &        & *      & \\
		&        &        &        & \vdots & \\
		&        &        &        & *      &
		\end{array}
	\end{array} \xrightarrow{(~)\circ P }$
	$\arraycolsep 1pt
	\renewcommand{\arraystretch}{0.5}
	\begin{array}{cccc}
	\vspace{-5pt}
		n\left\{\begin{array}{ccc}
		\vspace{-5pt}
			* & \cdots & *\\
			\vdots & \ddots & \vdots\\
			*&\cdots &*
		\end{array}\right.&&&\\
		\vspace{-5pt}
	&\overbrace{\begin{array}{ccc}
		\vspace{-5pt}
		* & \cdots & *\\
		\vdots & \ddots & \vdots\\
		*&\cdots &*
		\end{array}}^{n}&&\\
	&&\ddots&\\
	&&&\begin{array}{ccc}
	\vspace{-5pt}
		* & \cdots & *\\
		\vdots & \ddots & \vdots\\
		*&\cdots &*
		\end{array}\\
	\end{array}$