\subsection{Prismatic Wall}\label{prismatic-wall}

\emph{9th-level abjuration}

\begin{itemize}
\tightlist
\item
  \textbf{Casting Time:} 1 action
\item
  \textbf{Range:} 60 feet
\item
  \textbf{Components:} V, S
\item
  \textbf{Duration:} 10 minutes
\end{itemize}

A shimmering, multicolored plane of light forms a vertical opaque
walliup to 90 feet long, 30 feet high, and 1 inch thick---centered on a
point you can see within range. Alternatively, you can shape the wall
into a sphere up to 30 feet in diameter centered on a point you choose
within range. The wall remains in place for the duration. If you
position the wall so that it passes through a space occupied by a
creature, the spell fails, and your action and the spell slot are
wasted.

The wall sheds bright light out to a range of 100 feet and dim light for
an additional 100 feet. You and creatures you designate at the time you
cast the spell can pass through and remain near the wall without harm.
If another creature that can see the wall moves to within 20 feet of it
or starts its turn there, the creature must succeed on a Constitution
saving throw or become blinded for 1 minute.

The wall consists of seven layers, each with a differen color. When a
creature attempts to reach into or pass through the wall, it does so one
layer at a time through all the walls layers. As it passes or reaches
through each layer, the creature must make a Dexterity saving throw or
be affected by that layer's properties as described below.

The wall can be destroyed, also one layer at a time, in order from red
to violet, by means specific to each layer. Once a layer is destroyed,
it remains so for the duration of the spell. A rod of cancellation
destroys a prismatic wall, but an antimagic field has no effect on it.

\begin{enumerate}
\def\labelenumi{\arabic{enumi}.}
\tightlist
\item
  \textbf{Red.} The creature takes 10d6 fire damage on a failed save, or
  half as much damage on a successful one. While this layer is in place,
  nonmagical ranged attacks can`t pass through the wall. The layer can
  be destroyed by dealing at least 25 cold damage to it.
\item
  \textbf{Orange.} The creature takes 10d6 acid damage on a failed save,
  or half as much damage on a successful one. While this layer is in
  place, magical ranged attacks can't pass through the wall. The layer
  is destroyed by a strong wind.
\item
  \textbf{Yellow.} The creature takes 10d6 lightning damage on a failed
  save, or half as much damage on a successful one. This layer can be
  destroyed by dealing at least 60 force damage to it.
\item
  \textbf{Green.} The creature takes 10d6 poison damage on a failed
  save, or half as much damage on a successful one. Apasswall spell, or
  another spell of equal or greater level that can open a portal on a
  solid surface, destroys this layer.
\item
  \textbf{Blue.} The creature takes 10d6 cold damage on a failed save,
  or half as much damage on a successful one. This layer can be
  destroyed by dealing at least 25 fire damage to it.
\item
  \textbf{Indigo.} On a failed save, the creature is restrained. It must
  then make a Constitution saving throw at the end of each of its turns.
  If it successfully saves three times, the spell ends. If it fails its
  save three times, it permanently turns to stone and is subjected to
  the petrified condition. The successes and failures don't need to be
  consecutive; keep track of both until the creature collects three of a
  kind. While this layer is in place, spells can't be cast through the
  wall. The layer is destroyed by bright light shed by a daylight spell
  or a similar spell of equal or higher level.
\item
  \textbf{Violet.} On a failed save, the creature is blinded. It must
  then make a Wisdom saving throw at the start of your next turn. A
  successful save ends the blindness. If it fails that save, the
  creature is transported to another plane of the DM's choosing and is
  no longer blinded. (Typically, a creature that is on a plane that
  isn't its home plane is banished home, while other creatures are
  usually cast into the Astral or Ethereal planes.) This layer is
  destroyed by a dispel magic spell or a similar spell of equal or
  higher level that can end spells and magical effects.
\end{enumerate}
