So here are some thoughts in making the assassin not just about dat trap life
1venom should be like a psn chant so that merc and shadow can stack the damage. Doing this would increase melee sin and give more rotation to the class. And it should apply to kicks as well.
2make shadow copy skills as the sin dose them such as 2sins in one motion like how a shadow would follow. So when 1hits you both are hitting you for double melee damage and then master can copy traps or be support with skills such as cloak and mind blast and traps. So In Short shadow cloak would be copy the sins skills as they are preformed and shadow master gives support skills such a as mind blast and cloak and traps
3hammer is so forgotten so let’s add some perks to it for a magic sin like add a stun to it and or make it a passive that gives chant to stun on attack or add synergy’s to it like mind blast or something to give a new build.
4 make dragon claw splash. Doing this will give the melee sin more reason rotations and better for pvm
5have some of the Martial arts give passives for each point such a as Cobra strike gives passive life and mana steal and fire/thunder/cold reduce enemy’s resist
6cloak of shadows should fade the sin out when shadow cloak is active making the shadow be the only targetable class for a breif moment. It’s a good counter for big attacks that would come such as corpse explosion when killing things in close range
7blade senital or fury should be replaced with a blade trap such as the ones In tombs
These are some ideas I have to make the sin more fun let me know what you think and mention one that you would love to see