***TRIALS RESPONSE***Well , well, a deck based on death effects. I absolutely love them
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First of all, since you want to focus on death effects, bone wall is a better shield than skull buckler in this case. This leads me to: you should remove aflatoxin. While it can be good when used with skull buckler, it entirely destroys your bonewall. Also, you should put more bonewalls in this. Only one is not going to be enough if you wanna actually draw it.
If you have access to upgraded cards, I would suggest upgraded pandemoniums. They are great Mass CC against your opponent , which can kill your opponent's creatures, while building your bonewall up more and buffing your vultures.
If you have access to rare weapons, i would remove this dagger for another weapon without a doubt. Either choose discord to really slow down any deck that is not a rainbow, or you can use arsenic, which can build up poison damage in any of those cases. Considering your deck needs time to build up, I would suggest discord, but it's your decision at this point.
Considering Quanta generation, i would probably remove some death pillars and add some Soul Catchers. When a creature dies, you gain 2 death quanta. this can make you build up way faster, espescially when using cats or a pandemonium.
If you follow the advices i just gave you, the deck would look something like this :
Hover over cards for details, click for permalink
4vc 4vc 4vc 4vc 4vc 4vc 4vc 4vl 4vl 4vq 4vq 4vq 4vq 4vq 4vq 52k 52k 52k 52k 52r 52r 52r 52r 52v 52v 52v 52v 52v 6u9 6u9 8pk
Hope this helps you out