Lately i've been trying to make Death's Shadow work in Legacy. And I must say I'm pretty impressed with the results so far. Nonetheless I think my list could use some changes and improvements.
I played 4 weeklys and a team constructed event at my LGS and I also attended Mkm Series Milan, all with the built down bellow.
My records are:
weeklys: 3:1, 3:1, 3:0:1 and 4:0
team constructed: 3:1 in rounds, won semis, lost finals
Mkm Milan: 3:2:1 drop

Legacy BUg Suicide Delver

14 Creatures
4 Death's Shadow
4 Deathrite Shaman
4 Delver of Secrets
2 Gurmag Angler

27 Instants and Sorceries
4 Brainstorm
4 Thoughtseize
4 Gitaxian Probe
3 Ponder
3 Force of Will
3 Daze
3 Abrupt Decay
2 Dismember
1 Berserk

1 Other Spell
1 Sylvan Library

18 Lands
4 Polluted Delta
2 Misty Rainforest
2 Verdant Catacombs
2 Underground Sea
1 Bayou
2 Watery Grave
1 Breeding Pool
4 Wasteland

Sideboard (15)
2 Golgari Charm
2 Surgical Extraction
1 Hooting Mandrills
1 Painful Truths
1 Sylvan Library
1 Pithing Needle
1 Toxic Deluge
1 Winter Orb
1 Nihil Spellbomb
1 Abrupt Decay
1 Force of Will
1 Dismember
1 Fatal Push

I'll take the deck to Eternal Weekend Paris and need some help to optimize the list.
Your suggestions and experiences(with similar decks) are welcome! Feel free to ask, if you have any questions.