<s>
Guild	B-Protocol
Wars	I-Protocol
2	I-Protocol
:	I-Protocol
Heart	I-Protocol
of	I-Protocol
Thorns	I-Protocol
is	O
the	O
first	O
expansion	O
pack	O
for	O
Guild	B-Protocol
Wars	I-Protocol
2	I-Protocol
,	O
a	O
massively	B-Protocol
multiplayer	I-Protocol
online	I-Protocol
role-playing	I-Protocol
game	I-Protocol
developed	O
by	O
ArenaNet	O
and	O
published	O
by	O
NCSOFT	O
.	O
</s>
<s>
It	O
was	O
released	O
for	O
Microsoft	B-Application
Windows	I-Application
on	O
October	O
23	O
,	O
2015	O
.	O
</s>
<s>
The	O
Revenant	O
focuses	O
on	O
using	O
the	O
power	O
of	O
legends	O
from	O
Guild	B-Application
Wars	I-Application
past	O
,	O
granting	O
it	O
a	O
variety	O
of	O
different	O
skills	O
.	O
</s>
<s>
Usable	O
legends	O
include	O
dwarf	O
,	O
demon	O
,	O
centaur	O
,	O
assassin	O
,	O
and	O
dragon	O
-	O
each	O
legend	O
focusing	O
on	O
a	O
specific	O
theme	O
of	O
abilities	O
,	O
including	O
tanking	B-Protocol
,	O
control	O
,	O
healing	O
,	O
damage	O
,	O
and	O
utility	O
,	O
respectively	O
.	O
</s>
<s>
Guild	O
halls	O
were	O
also	O
added	O
with	O
Heart	O
of	O
Thorns	O
,	O
inspired	O
by	O
those	O
from	O
the	O
first	O
Guild	B-Application
Wars	I-Application
.	O
</s>
<s>
The	O
maps	O
also	O
feature	O
Outposts	O
and	O
Adventures	O
,	O
new	O
gameplay	O
elements	O
that	O
further	O
enhance	O
the	O
dynamic	O
event	O
system	O
that	O
Guild	B-Protocol
Wars	I-Protocol
2	I-Protocol
is	O
known	O
for	O
,	O
as	O
well	O
as	O
many	O
new	O
races	O
and	O
civilizations	O
,	O
which	O
include	O
the	O
Exalted	O
,	O
Itzel	O
,	O
Nuhoch	O
,	O
saurians	O
and	O
the	O
chak	O
.	O
</s>
<s>
The	O
expansion	O
introduced	O
raids	B-Protocol
to	O
the	O
game	O
,	O
instanced	O
content	O
designed	O
for	O
groups	O
of	O
ten	O
players	O
that	O
is	O
supposed	O
to	O
represent	O
the	O
most	O
challenging	O
content	O
in	O
the	O
game	O
.	O
</s>
<s>
Raids	B-Protocol
are	O
separated	O
into	O
several	O
wings	O
,	O
each	O
wing	O
consisting	O
of	O
a	O
number	O
of	O
encounters	O
.	O
</s>
<s>
The	O
rewards	O
of	O
raids	B-Protocol
include	O
legendary	O
armor	O
.	O
</s>
<s>
Stronghold	O
was	O
inspired	O
by	O
MOBA	O
games	O
and	O
was	O
designed	O
to	O
give	O
players	O
a	O
completely	O
new	O
take	O
on	O
PvP	O
in	O
Guild	B-Protocol
Wars	I-Protocol
2	I-Protocol
.	O
</s>
<s>
Guild	B-Protocol
Wars	I-Protocol
2	I-Protocol
:	I-Protocol
Heart	I-Protocol
of	I-Protocol
Thorns	I-Protocol
was	O
announced	O
on	O
January	O
24	O
,	O
2015	O
at	O
PAX	O
South	O
.	O
</s>
