what is needed feint 8 blades and critical hit or 10 blades and feint, or 8 blades feint and 2 traps. or minus one if boosted on Rasputin (see central's wiki for schools that boost)
hitter should have 90% damage boost or higher and use a spell that does 1300 (at 90% boost lower is fine if above that mark) damage.
player 1: 1 gear tri-blade 1 gear sharpen 1 pet sharpen 2 tri blade 1 rank 4 aoe attack if capable of killing minions 1 colossal enchant
player 2 1 feint 1 potent trap 1 sharpen 2 tri blade 1 rank 4 aoe attack if capable of killing minions 1 colossal enchant
player 3 1 tc school blade (hitter's school) 1 tc tri blade 1 rank 4 or 5 aoe if capable of killing minions 1 colossal enchant
player 4 (hitter) 2 school blade 1 sharpen 1 spell any rank (must after enchant hit 1300+ damage) 1 colossal enchant
strategy
round 1 all blade hammer
round 2 player 1, 2, or 3 hits minions other 2 buff hitter hammer buffs
round 3 (if hammer cannot hit) all buff hammer or pass turn
round 3 (if hammer can hit) player 2 feints player 1, 3 buff hammer player 4 hits
round 4 (if hammer did not hit) player 1 (if capable, kills any minions alive if hammer is using single target or cannot pierce their resist) player 2 feints player 3 buffs hammer or passes player 4 hits
round 4 (if hammer fizzes) player 1-3 pass, buff hammer, player 4 hits
round 4 (if hammer hits but minions were summoned) all hit with aoe if able to kill minions.