Crush Them

Use this Stratagem in the Fight phase, when a
BATTLE TANK or SUPER-HEAVY
model from your army is selected to fight.
Until the end of the phase, each time that model
makes an attack against an enemy unit (Excl.
VEHICLE & MONSTER units):
•Change the models WS characteristic to 4+
If that model has the ARMOURED
keyword, change its WS to 3+.
•On an unmodified wound roll of 6,target
suffers 1MW in addition to any normal damage.