I'm not sure I agree about Dispel against Jund. Their biggest problem card for me is Liliana of the Veil. Also, Abrupt Decay is uncounterable.

Burn is an easy matchup. No Dispel necessary, I don't think.

Right now I have 4 open card slots in the sideboard. Between them, I need some way to shift towards aggro, but also some late game value. I need something like Sword of Light and Shadow, but it dies to both Kolaghan's Command and Abrupt Decay. Running 2 swords and 2 Monastery Swiftspear would be ideal, but the swords are too fragile. Uggh. They're just so perfect for what I want, though.

Any ideas for how to fill those spots? I'm looking for some way to speed up the deck for the combo matchups and some way to have a better midrange.

Depending on when you sideboard in your Batterskull Rakdos Ragemutt might be a nice way to put on some heat and gain some life. It doesn't pass the bolt-test, sadly, but you can't beat the pricetag!

Thanks for the comment!

Unfortunately he doesn't quite handle the abzan and June creatures very well, but you're right about the price tag!

In my mind, my sideboard has 3 general plans. For aggro decks I usually side in, dependent on the deck, Spellskite and Pyroclasm. For control and combo I out my Vampire Nighthawk and side in Monastery Swiftspear and Batterskull for control. For midrange I side pretty much everything, including Batterskull. So Rakdos Ragemutt would have to stand up to both control and midrange! which is where the bolt test becomes critical. Batterskull can also dodge which helps a ton.

Thanks for the suggestion though! It definitely a great budget option!