Ok, this is kind of how you use Sword and Shield.
Whenever your getting in on the target like Aria does, you block incomings, it kills your stamina but that regens on its own.
The next thing is go for the tail, if you don't have a great sword guy working on it, your the guy that cuts it off just as fast.
Sword and shielders don't go for the head, their attacks are too wild, thats what Aria did though and she kept hitting the guy with the hammer stopping him from doing any real damage since hammers are about 8x stronger than sword and shields.
Also make sure your sword is poison or paralyze, both work great on wyvrens that love to run.
In Monster Hunter the creation of weapons have trees as you build into a tree; say poison then you will keep making poison weapons better unless you start a new weapon.
Each upgraded weapon is a totally new weapon, just that it also is part of a group of weapons that would recieve that element.
Most importantly notice the control of the camera, it's always trained on the monster.
Even though you have a shield dodging is always better than blocking for swords and shielders, it's not about how much you defend but how much you attack. Remember to keep your weapon sharp also.
I'm Unamerica and you can too.
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