<s>
is	O
an	O
action	B-Application
video	I-Application
game	I-Application
developed	O
by	O
Koei	O
.	O
</s>
<s>
It	O
is	O
a	O
game	O
in	O
the	O
Dynasty	B-Application
Warriors	I-Application
series	O
.	O
</s>
<s>
The	O
game	O
was	O
released	O
worldwide	O
in	O
2007	O
in	O
April	O
in	O
Japan	O
,	O
in	O
July	O
in	O
North	O
America	O
,	O
and	O
in	O
August	O
in	O
PAL	B-Language
regions	O
for	O
the	O
Nintendo	B-Device
DS	I-Device
.	O
</s>
<s>
In	O
battles	O
,	O
the	O
cards	O
are	O
used	O
to	O
summon	O
the	O
warriors	O
of	O
the	O
Dynasty	B-Application
Warriors	I-Application
series	O
to	O
assist	O
the	O
player	O
in	O
battles	O
.	O
</s>
