Sideboard in these cards against the following deck types:
Fast Zoo:
+2 Slaughter Pact +1 Anger of the Gods +1 Engineered Explosives +1 Thrun, the Last Troll +1 Liliana of the Veil
-3 Thoughtseize -3 Dark Confidant
Melira Pod:
+1 Anger of the Gods +1 Thoughtseize +1 Chandra, Pyromaster +1 Grafdigger's Cage +1 Golgari Charm
-3 Inquisition of Kozilek -2 Abrupt Decay
I can see bringing Fulminator Mages on the play and try attack their lands alongside their mana creatures. If you chose to bring them, take out a mix of Abrupt Decays/Lilianas as well.
Affinity
+2 Slaughter Pact +1 Anger of the Gods +4 Fulminator Mage +2 Rakdos Charm +1 Golgari Charm +1 Engineered Explosives
-4 Dark Confidant -2 Courser of Kruphix -2 Thoughtseize -1 Chandra, Pyromaster - 1 Liliana of the Veil -1 Scavenging Ooze
Splinter Twin (pure combo)
+2 Slaughter Pact +4 Fulminator Mage +2 Rakdos Charm + 1 Golgari Charm +1 Thoughtseize +1 Liliana of the Veil
-2 Anger of the Gods -2 Scavenging Ooze -1 Maelstrom Pulse -2 Courser of Kruphix -1 Chandra, Pyromaster -1 Jund Charm -2 Lightning Bolt
Splinter Twin (value)
+2 Slaughter Pact +1 Rakdos Charm + 1 Golgari Charm +1 Thrun, the Last Troll +1 Chandra, Pyromaster
-2 Anger of the Gods -4 Dark Confidant
UWR
+2 Slaughter Pact +4 Fulminator Mage + 1 Thoughtseize +1 Liliana of the Veil +1 Chandra, Pyromaster +1 Thrun, the Last Troll
-4 Lightning Bolt -3 Abrupt Decay -1 Jund Charm -2 Anger of the Gods
Scapeshift
+2 Slaughter Pact +4 Fulminator Mage +1 Thoughtseize +1 Liliana of the Veil +1 Chandra, Pyromaster
-3 Lightning Bolt -3 Abrupt Decay -2 Anger of the Gods -1 Jund Charm
If they have Prismatic Omens, keep 1-2 Abrupt Decays in and take out the Lightning Bolt.
Hexproof
+1 Anger of the Gods +1 Thoughtseize +1 Golgari Charm +1 Engineered Explosives +2 Slaughter Pact +1 Thrun, the Last Troll
-2 Terminate -4 Lightning Bolt -1 Chandra, Pyromaster
Slaughter Pact comes in to kill their Dryad Arbor that is supposed to save their creature when you play your Liliana turn three. Thrun usually can buy you some turns to find your answers if they don't have Rancor.
Storm
+1 Thoughtseize +1 [ccProd]Liliana of the Veil +2 Rakdos Charm +1 Golgari Charm +1 Engineered Explosives +1 Grafdigger's Cage
-2 Terminate -2 Courser of Kruphix -1 Chandra, Pyromaster -2 Anger of the Gods
Jund
+2 Slaughter Pact +1 Liliana of the Veil +1 Chandra, Pyromaster +1 Thrun, the Last Troll
- 1 Inquisition of Kozilek -3 Thoughtseize -2 Anger of the Gods
I'd like to have two extra cards to bring in since discards are awful post board. Some people bring in Fulminator Mages, but I don't like it. If you know they have some 4cc+ problematic cards (such as Planeswalkers, Batterskull, Thundermaw or Obliterator) keep Thoughtseize in and take out Inquisitions.
Burn
You have two options:
+1 Thoughtseize + 1 Thrun, the Last Troll +2 Slaughter Pact +1 Liliana of the Veil
-4 Dark Confidant -1 Anger of the Gods
or
Shake your opponent’s hand and use the spare time to find something to eat.
Tron
+1 Thoughtseize +1 Liliana of the Veil +4 Fulminator Mage +2 Rakdos Charm
-3 Abrupt Decay -2 Anger of the Gods -1 Jund Charm -2 Lightning Bolt
Living End
+2 Rakdos Charm +1 Thoughtseize +4 Fulminator Mage +2 Slaughter Pact
-4 Lightning Bolt -2 Anger of the Gods -3 Abrupt Decay
Be very aggressive sacrificing your Fulminator Mages. Playing Liliana and discarding extra Goyfs is also a good idea, especially if you have some pressure.
Plan A: Discard all their cascade spells while beating them down with 'Goyfs.
Plan B: Stick a creature to start the beats and hold a graveyard hate forever.
Plan C: Play a turn 4 Ooze and start eating their graveyard.
Plan D: If they resolve an early Living End, grow a gigantic Goyf to block and ultimate Liliana while gaining some life with Ooze and Courser.
Blue Moon
+1 Thoughtseize +1 Liliana of the Veil +1 Golgari Charm +1 Engineered Explosives +1 Rakdos Charm +1 Chandra, Pyromaster +1 Thrun, the Last Troll
-2 Anger of Gods -1 Jund Charm -1 Terminate -4 Lightning Bolt
Make sure to fetch for basics even if means you won't be able to cast red spells in the early game (they are all bad anyways). Their biggest threat (way more than Blood Moon) is Shackles, be careful.