See the update below.
Original answer
Here is a Tikz solution (since your question had a tikz tag). It can be done also with tables. The image for the scroll was taken here. There are some "magic numbers" in the code (the width of the image, its height, the width of the block of text, its minimum height). Feel free to modify them to your taste. Also the amount (-0.2,0.2) is somewhat arbitrary, trying to bring close the image to the block of text, because this particular image had a white padding.
\documentclass{article}
\usepackage{tikz}
\usetikzlibrary{calc}
\newcommand{\leftcard}[5]{ % #1 Background picture, #2 number, #3 number color, #4 Title, #5 text
\begin{tikzpicture}
\node[anchor=south east] (scroll)
{\includegraphics[width=4cm, height=1cm]{#1}};
\node[text width=6cm, draw, anchor=north east, minimum height=4cm]
(text) at ($(scroll.south east)+(-0.2,0.2)$) {\parskip=1ex #5};
\node[circle, fill=#3, anchor=west, draw] (number) at (scroll.west) {#2};
\node (title) at (scroll.center) {#4};
\end{tikzpicture}
}
\newcommand{\rightcard}[5]{ % #1 Background picture, #2 number, #3 number color, #4 Title, #5 text
\begin{tikzpicture}
\node[anchor=south east] (scroll)
{\includegraphics[width=4cm, height=1cm]{#1}};
\node[text width=6cm, draw, anchor=north west, minimum height=4cm]
(text) at ($(scroll.south west)+(0.2,0.2)$) {\parskip=1ex #5};
\node[circle, fill=#3, anchor=west, draw] (number) at (scroll.west) {#2};
\node (title) at (scroll.center) {#4};
\end{tikzpicture}
}
\newcommand{\cards}[5]{
\leftcard{#1}{#2}{#3}{#4}{#5}%
\rightcard{#1}{#2}{#3}{#4}{#5}\par
}
\begin{document}
\cards{scroll.jpg}{0}{orange!80!black}{Copper}{%
Deal 7 Copper cards to each player at the start.
2-4 players, use all basic Treasure cards from one
set.
5-6 players, combine all basic Treasure cards from
two sets.
}
\vskip 1cm
\cards{scroll.jpg}{3}{yellow!80!black}{Silver}{
2-4 players, use all basic Treasure cards from one
set.
5-6 players, combine all basic Treasure cards from
two sets.
}
\end{document}
Resulting page:

Update
The OP requested no gap between cards, so I investigated why a gap appeared in the solution above. There were some unwanted spaces due to the usual problem of carriage returns. Inserting some % at the end of critical lines solved this.
But the main source of problems was that the image scroll.jpg which I choose to use had a white padding around, which forced me to "shift" the image to make it closer to the card. A better approach is to remove the padding using trim option of \includegraphics. This way the shift is not required.
This is the new solution:
\documentclass{article}
\usepackage{tikz}
\usetikzlibrary{calc}
\newcommand{\leftcard}[5]{% #1 Background picture, #2 number, #3 number color, #4 Title, #5 text
\begin{tikzpicture}
\node[anchor=south east, inner sep=0pt] (scroll)
{\includegraphics[clip, trim=20 20 20 20, width=4cm, height=1cm]{#1}};
\node[text width=6cm, draw, anchor=north east, minimum height=4cm]
(text) at (scroll.south east) {\parskip=1ex #5};
\node[circle, fill=#3, anchor=west, draw] (number) at (scroll.west) {#2};
\node (title) at (scroll.center) {#4};
\end{tikzpicture}%
}
\newcommand{\rightcard}[5]{% #1 Background picture, #2 number, #3 number color, #4 Title, #5 text
\begin{tikzpicture}
\node[anchor=south west, inner sep=0pt] (scroll)
{\includegraphics[clip, trim=20 20 20 20, width=4cm, height=1cm]{#1}};
\node[text width=6cm, draw, anchor=north west, minimum height=4cm]
(text) at (scroll.south west) {\parskip=1ex #5};
\node[circle, fill=#3, anchor=west, draw] (number) at (scroll.west) {#2};
\node (title) at (scroll.center) {#4};
\end{tikzpicture}%
}
\newcommand{\cards}[5]{
\leftcard{#1}{#2}{#3}{#4}{#5}%
\rightcard{#1}{#2}{#3}{#4}{#5}\par
}
\begin{document}
\cards{scroll.jpg}{0}{orange!80!black}{Copper}{%
Deal 7 Copper cards to each player at the start.
2-4 players, use all basic Treasure cards from one
set.
5-6 players, combine all basic Treasure cards from
two sets.
}
\vskip 1cm
\cards{scroll.jpg}{3}{yellow!80!black}{Silver}{
2-4 players, use all basic Treasure cards from one
set.
5-6 players, combine all basic Treasure cards from
two sets.
}
\end{document}

\documentclassand end with\end{document}. It just speeds up getting answers your way. – Werner Jul 05 '13 at 22:35