Originally Posted by
Seraphix
D&T can be a surprisingly difficult matchup. We have a lot of removal against them, but the problem is that if your removal lines up incorrectly you will get into a lot of trouble quickly (Examples: you can't kill Mother on the draw, you have Fire when they have Avenger or Decay when they have Crusader).
Against Infect you have to play carefully since they can kill out of nowhere. Sometimes they'll just have it and kill you through removal. Try to use burn on their creatures on your turn to not get killed by pump spells in combat, play around Vines to the best of your ability. We're very favored in the long game here. Inkmoth can be their scariest threat since it can't be Decay'ed and outside of Wasteland we have to interact with it on their turn.
For your situation I'd suggest playing at least 3 Bolts main. Cheap removal is at a premium against these decks in general and especially on the draw. Golgari Charm is also a nice SB card against both decks, since it kills creatures and RIP (sometimes played in Infect too), and Library out of Infect.