@morphberling
I would say against D&t toxic is your best card. The MU comes up to mirran crussader, if they manage to play its your only chance to win, and if you resolve it, chances are you will win. It is true is hard to reach 4-5 mana in these games but in my experience if you get to them you have a favorable mu. This is one of the reasons why i like the meddling mage SB, people tend to underestimate the possibility of siding in the scrubland against mana denial decks when it can be game changing. I didn't do it against d&t at the start but came to the conclusion(after a lot of testing) that is the best idea.

Recently I have been playing the following list but was considering taking one hymn to the side and bringing sykvan ibrary to the main deck. I think sylvan is a card that wins games on its own while being good against almost any deck, hymn despite improving our best MU can be hard to cast against delver decks. What do you think? also has anyone tried jitte as well?

4 Deathrite Shaman
4 Tarmogoyf
2 Baleful Strix
4 Shardless Agent

3 Ancestral Vision
4 hymn to tourach
1 Toxic Deluge
1 Maelstrom Pulse

4 Brainstorm
4 Abrupt Decay
4 Force of Will

2 Liliana of the Veil
1 Jace, the Mind Sculptor

4 Polluted Delta
1 Verdant Catacombs
4 misty rainforest
3 Underground Sea
2 Tropical Island
2 Bayou
1 Swamp
3 Wasteland
1 creeping tar pit
1 hissing quagmire

SB:
1 Scrubland
2 Meddling Mage
1 vendilion clique
1 thoughtseize
1 toxic deludge
1 golgari charm
1 umezawas jitte
1 desfigure
1 sylvn library
1 surgical extraction
1 gravediggers cage
1 baleful strix
1 primordial seal
1 Null Rod