Titan Slayer

After the 2nd Titan War, the Giants were target for being allied with the Titans. Humanoids developed techniques to kill a Giants easier. Century's have pass since the Giants were hunted. Some still practice the techniques

Wall Run

You have a climbing speed equal to your walking speed 

Knowing Blindspot

You can hide in a creature space if the creature is size large or bigger 

Weak Point

You can spend your action to study a creature for weak points. Your next sneak attack against that creature if it hits it is consider a critical hit. For that critical hit, triple the number of dice instead of doubling.  

Finding a Weaken

When you are investigating information about creature that are large or bigger you roll with advantage 

Hidden Presence

You know how to hid from creature with good eye sight and hearing. You have advantage on stealth check against creature that a large or bigger. You can't be detected by blindsight, temorsense, or truesight if you don't want to be.