Heres an Idea!

[garfobosonfire]

FoR was talkin about this deck I think I wanna try! Its Blue/Black hand destruction! And maybe some counter elements should be added! The whole thing would revolve around Avatar of Will!! So, any ideas? kill cards?

 

[Multani]

Tag Guard

Well, since your using black, add Avatar of Woe.
Also I wouldn't recommend Land Destruction for Blue/Black.
I would make blue primary counterspells, and black creature and hand destruction.
Note: Weenie and Stompy can really hurt a deck like this!

 

[Cateran Overlord]

If this is MM block, then I'd recommend the following as an idea I've tinkered with:

37 Spells
4 Specter's Wail
4 Unmask
4 Flay
4 Parralax Nexus
4 Dark Ritual
1 Greel, Raker o' Minds
4 Rhystic Tutor
4 Avatar of Will
4 Counterspell
4 Spiketail Hatchling

23 Lands
12 Swamp
11 Island

It's pretty weird, but the discard power is absurdly good with the Avatar, and the Avatar is usually safe once their hand is empty.

 

[Killer Joe]

Massacare in the sideboard.