<s>
Teamfight	B-Application
Tactics	I-Application
(	O
TFT	O
)	O
is	O
an	O
auto	O
battler	O
game	O
developed	O
and	O
published	O
by	O
Riot	O
Games	O
.	O
</s>
<s>
The	O
game	O
is	O
a	O
spinoff	O
of	O
League	B-Application
of	I-Application
Legends	I-Application
and	O
is	O
based	O
on	O
Dota	B-Operating_System
Auto	I-Operating_System
Chess	I-Operating_System
,	O
where	O
players	O
compete	O
online	O
against	O
seven	O
other	O
opponents	O
by	O
building	O
a	O
team	O
to	O
be	O
the	O
last	O
one	O
standing	O
.	O
</s>
<s>
The	O
game	O
released	O
as	O
a	O
League	B-Application
of	I-Application
Legends	I-Application
game	O
mode	O
for	O
Windows	O
and	O
macOS	B-Application
in	O
June	O
2019	O
and	O
as	O
a	O
standalone	O
game	O
for	O
Android	B-Application
and	O
iOS	B-Application
in	O
March	O
2020	O
,	O
featuring	O
cross-platform	B-Application
play	I-Application
between	O
them	O
.	O
</s>
<s>
Based	O
on	O
Dota	B-Operating_System
Auto	I-Operating_System
Chess	I-Operating_System
,	O
a	O
mod	O
for	O
Dota	B-Application
2	I-Application
,	O
the	O
game	O
centers	O
around	O
eight	O
players	O
who	O
construct	O
teams	O
to	O
fight	O
one	O
another	O
and	O
be	O
the	O
last	O
player	O
standing	O
.	O
</s>
<s>
With	O
some	O
exceptions	O
,	O
units	O
have	O
a	O
health	O
bar	O
and	O
a	O
mana	B-Application
bar	O
.	O
</s>
<s>
Taking	O
damage	O
from	O
enemy	O
attacks	O
or	O
abilities	O
will	O
lower	O
a	O
unit	O
's	O
health	O
but	O
increase	O
a	O
unit	O
's	O
mana	B-Application
.	O
</s>
<s>
When	O
a	O
unit	O
's	O
mana	B-Application
bar	O
is	O
full	O
,	O
they	O
cast	O
a	O
unique	O
ability	O
.	O
</s>
<s>
Some	O
units	O
may	O
start	O
the	O
round	O
with	O
some	O
percentage	O
of	O
their	O
mana	B-Application
bar	O
full	O
,	O
but	O
units	O
generally	O
start	O
the	O
round	O
with	O
no	O
mana	B-Application
.	O
</s>
<s>
Synergies	B-Language
are	O
activated	O
by	O
a	O
team	O
composition	O
that	O
makes	O
use	O
of	O
one	O
or	O
multiple	O
units	O
with	O
the	O
same	O
trait	O
.	O
</s>
<s>
Each	O
unit	O
has	O
two	O
or	O
three	O
traits	O
and	O
the	O
effective	O
combination	O
of	O
units	O
will	O
activate	O
synergies	B-Language
that	O
benefit	O
the	O
player	O
.	O
</s>
<s>
Synergies	B-Language
will	O
usually	O
fall	O
into	O
three	O
categories	O
:	O
effects	O
that	O
strengthen	O
allies	O
,	O
effects	O
that	O
weaken	O
enemies	O
,	O
and	O
miscellaneous	O
effects	O
.	O
</s>
<s>
Each	O
"	O
set	O
"	O
of	O
Teamfight	B-Application
Tactics	I-Application
corresponds	O
to	O
a	O
unique	O
unit	O
pool	O
,	O
collection	O
of	O
synergies	B-Language
,	O
and	O
usable	O
items	O
.	O
</s>
<s>
Teamfight	B-Application
Tactics	I-Application
periodically	O
updates	O
its	O
unit	O
roster	O
.	O
</s>
<s>
As	O
Teamfight	B-Application
Tactics	I-Application
is	O
a	O
game	O
mode	O
of	O
League	B-Application
of	I-Application
Legends	I-Application
,	O
its	O
patch	O
numbering	O
follows	O
the	O
same	O
as	O
its	O
parent	O
game	O
rather	O
than	O
being	O
labelled	O
differently	O
.	O
</s>
<s>
Teamfight	B-Application
Tactics	I-Application
was	O
based	O
on	O
Dota	B-Operating_System
Auto	I-Operating_System
Chess	I-Operating_System
,	O
which	O
in	O
turn	O
was	O
inspired	O
by	O
Mahjong	B-Application
,	O
where	O
players	O
pick	O
up	O
tiles	O
and	O
discard	O
tiles	O
in	O
order	O
to	O
complete	O
a	O
hand	O
by	O
forming	O
a	O
pair	O
and	O
sets	O
such	O
as	O
a	O
sequence	O
,	O
or	O
three	O
or	O
four	O
identical	O
tiles	O
,	O
while	O
preventing	O
other	O
players	O
to	O
complete	O
a	O
hand	O
.	O
</s>
<s>
The	O
game	O
was	O
released	O
within	O
the	O
League	B-Application
of	I-Application
Legends	I-Application
client	O
for	O
Windows	O
and	O
macOS	B-Application
on	O
June	O
26	O
,	O
2019	O
,	O
and	O
as	O
a	O
standalone	O
app	O
for	O
Android	B-Application
and	O
iOS	B-Application
on	O
March	O
19	O
,	O
2020	O
.	O
</s>
<s>
Similar	O
to	O
other	O
free-to-play	O
games	O
from	O
Riot	O
,	O
Teamfight	B-Application
Tactics	I-Application
monetization	O
base	O
around	O
cosmetic	O
consumptions	O
.	O
</s>
<s>
It	O
has	O
its	O
own	O
store	O
separate	O
from	O
League	B-Application
of	I-Application
Legends	I-Application
.	O
</s>
<s>
Other	O
than	O
the	O
controllable	O
avatar	O
,	O
Teamfight	B-Application
Tactics	I-Application
also	O
has	O
skins	O
for	O
the	O
player	O
board	O
where	O
the	O
combat	O
between	O
players	O
is	O
played	O
.	O
</s>
<s>
Teamfight	B-Application
Tactics	I-Application
is	O
being	O
supported	O
by	O
Riot	O
Games	O
post-launch	O
,	O
with	O
regular	O
balance	O
updates	O
to	O
keep	O
the	O
game	O
fair	O
and	O
entertaining	O
,	O
as	O
well	O
as	O
Little	O
Legend	O
egg	O
drops	O
.	O
</s>
<s>
Sets	O
give	O
players	O
more	O
incentive	O
to	O
play	O
the	O
game	O
,	O
changing	O
synergies	B-Language
and	O
introducing	O
new	O
ones	O
,	O
rotating	O
various	O
League	B-Application
of	I-Application
Legends	I-Application
champions	O
into	O
the	O
roster	O
,	O
as	O
well	O
as	O
dropping	O
new	O
season	O
passes	O
.	O
</s>
