From Monster Hunter Wiki

[edit] Attacks

Attack	Description	How Often?	Counter-Attack	Damage
Prowler Stance	Gets into a ninja like position, indicates a recovery after the attack is launched.	Often	Get out of the way, since this means he will charge 1, 2, 3, or 4 times (rage only for 4 times) . Only recovers on 2, 3 and 4 charges. You can also throw a sonic bomb to make it fall while it's still doing the stance. Take note of where the head is facing, since that's where it'll jump when it does the Narga Combo.	None.
Short Narga Combo	Does a combo which can link up to 2 times.	Very often in non-rage.	Guard, dive or keep a distance, otherwise you'll get hit. Two hits can be guarded by SnS at full stamina, as usually only two hits could reach you if you're in the way.	Medium to High.
Long Narga Combo	Does a combo which can link up to 3 times (4 when in rage).	Very often in rage.	Guard, dive or keep a distance, otherwise you'll get hit. You can guard the first two or three if he's right in front of you, but with the SnS pushback recoil on guard you probably can get hit by the fourth since it's from behind	Medium to High.
Tail Sweep	Lashes out its tail so fast that it creates a white wind.	Very often.	Guard, otherwise make sure you're more than 1.5 times his body length away from him and jump. Wait until his tail has stopped moving and unleash your wrath. You can also try rolling through it.	Medium to High.
Spikeshot	Lifts its tail and fires spikes, rather wide area	Often.	Guard against it. Don't attack him. He attacks again immediately.	Low-Medium
Roar	Roars like a Tigrex when it first spots you.	Few.	Have Earplugs to avoid it. Run near the tail and attack it or keep a distance then roll near him to slash its head. Or attempt to roll through it when it's head is coming down.	If close to him, medium; if only affected, none.
"Hit me stance"	Bites into the air while standing still.	Very few times.	A good time to hit his face.	None.
Pseudo Bite	Normal Tigrex-like bite.	Often. Usually after it charges at you or when you are in front of it.	Roll to his side. Attack his neck or forelegs.	Medium.
Charge	Narga charges at you. Making you trip then to its advantage it will attack you with a tail sweep or a bite.	Often. Usually when you are far away from it (this is his equivalent of walking towards a far away target).	Roll to his side. Attack his neck or forelegs.	Very small
Tail Slam	Slams the ground with its spiky and flexible tail.	Rarely. In Rage Mode, Often (Especially if weakened).	Move away from his back and attack the tail once it's stuck. If weapon is drawn, try rolling away from it. Whatever you think is safe. Left or Right. (Evade +2 won't work on this move so don't bother rolling through its tail.)	Very high or Death.