My Lancer build/strategy goes like this:

Buffs pre-battle:
Life Surge (over SS because of WS life gain and evasion debuff)
Invigorate2
Comrade in Arms2 as soon as its available

Attacks consist of TP control:
Full Thrust
Twisting Vice
Moonrise 2

Battle Regimen for the Normal atk > Normal atk Br
Comrade in Arms 2 or
Light Thrust

Battle Regimen for the WS > WS Br
Ferocity2
Raging Strike
Cadence
Hawk's Eye
Still Precision
Keen Flurry >
Twisting Vice