Formation and Strategy Guide

Formation Guide:

  I suggest that you put melee mercs on the F zone ( Look below for the zones ). If you have more than 3 melee mercs, put the rest of the melee mercs on the M zone.I suggest to do not put 3 staff mercs in one row because the if enemy  can cast Silence or Seal Incantation, those 3 will get the effect.
F   F   F                                   
M M M                                     
B  B  B
                                   
Strategy Guide:
There are a few strategies I've planned and named.
1. Freezing Maniac ( For PvP )
This formation and strategy can freeze most of the enemy's mercs. This strategy affects on most enemy formations. You need: 2 mercs with the Freezing Axe, Ice Ridge axe or Forest Prison magic, 1 Exorcist, 3 other melee mercs with good defense, a prophet, a monk, an oracle/a shaman.Place your 3 melee mercs with good defense in the 'D' zone. Place your Excorcist in one of the 'F' zones. Place your 2 mercs with that certain type of magic in the 'F' zones. Place your monk, prophet and shaman/oracle in the 'S' zones. If you're main is sword, spear or Psaw, place it on the 'D' zone replacing a merc on the 'D' zone. If your main is Axe, Put it on one of the 'D'
D  D  D                         
F  F   F                          
S  S   S                      
                                  
                                       zone replacing a merc that have the certain magic mentioned above and put the excorcist behind the main. If your main is bow, gun, cannon or instrument, put it on any of the zones replacing one of the 3 mercs that have high defense. If your main is staff, put it on any of the zones replacing the shaman/oracle.
Your move: First, target your enemy's merc in the front line which has the lowest defense. Use your excorcist's mana seal as soon as possible. After you kill an enemy from the front line, use freezing axe, ice ridge axe or forest prison to the 1st and 2nd line ( It's possible because you have 2 mercs of that magic ). Then, try to kill another merc from the front line and the merc behind it. Remember to keep using mana seal anytime possible. Then, have fun killing and freezing your opponents mercs! Don't forgot about your stun counters!! ( That can stop you from winning )
Suggested by: A friend of mine. ( He don't want me to show his character's name )

2. Big Stun ( Good for PvP )
This strategy is just basically about stunning most of your enemy mercs. It is very very and seriously effective to opponents that do not have a monk. All you need is at least 3 cannon, gun or instrument mercs and 1 excorcist and a monk. Make sure that your excorcist won't die early. You need to keep away your gun,cannon and instrument mercs from magics that reduce effectiveness. You also need to keep casting Mana Seal whenever possible. Also, you need to keep your team away from magics that can stop this strategy such as silence on your excorcist, silence on your monk and signets on your ranged mercs,etc. Use cannons to damage middle. Try to kill monk first if you think it is possible because enemy monks can cancel the stun.

More strategy coming soon!!!( I already have the idea but I haven't had time to post it )
Good Luck :)