Matchups and Sideboarding
Jund and Midrange
This is your best matchup. Their creatures will quickly be outclassed by your creatures and they will not be able to deal with the Reveillark / Restoration Angel card advantage engine. Their best card against you is usually Thoughtseize because it's their most optimal way to remove an Ajani or Reveillark.
+2 Wrath of God
-1 Fulminator Mage
-1 Boom // Bust
With all of the removal you have already, you really don't need so many Wraths. Fulminator Mage is an easy cut because it just doesn't do enough, and cutting a Boom // Bust is fine because you will often not be ahead on the board and therefore unable to cast Bust.
Aggro (Red Deck Wins, Tokens, Soul Sisters, Infect, etc)
Aggro decks are also great matchups. Having access to five mass removal effects is something that most decks don't have.
+3 Wrath of God
-1 Fulminator Mage
-2 Boom // Bust
Sideboarding is almost the same as midrange, but you want to play the third Wrath against the more aggressive decks.
Affinity
+3 Stony Silence
+2 Wrath of God
-3 Reveillark
-1 Fulminator Mage
-1 Boom // Bust
Affinity is a very winnable matchup, but it is much harder to beat than the other aggro decks. If you play an early Stony Silence then the game will be easy, but that does not always happen. Reveillark is very slow and completely unplayable against affinity, so that's the first card to go. Boom // Bust isn't great, but can be ok against their manlands. This is the matchup where you will get the most value out of your Ghost Quarters and Path to Exiles, because Affinity usually only plays one basic land.
UW Control
Now we are moving on to the harder matchups. UW Control is not an easy deck to beat, but it's quite possible if you play around the right cards.
+3 Fulminator Mage
+3 Aven Mindcensor
-4 Lightning Bolt
-2 Volcanic Fallout
While Aven Mindcensor is not great, it's still an instant speed threat that must be dealt with. You can maybe catch them when they crack a fetch, but don't plan on that happening very often. You need to land as many threats as possible while still playing around their Supreme Verdicts and counterspells. Having creatures to cast on your opponent's turn will help out a lot in resolving your important cards.
Storm
+3 Rule of Law
+3 Fulminator Mage
+3 Aven Mindcensor
-4 Path to Exile
-4 Lightning Bolt
-2 Volcanic Fallout
There are a lot of cards that we want to take out against Storm but not enough to bring in. Your plan against this deck is to attack their lands. Boom // Bust, Fulminator Mage, and Ajani Vengeant will give you the time you need to draw and cast Rule of Law. Reveillark are pretty bad attackers against Storm and their main purpose is to Evoke them to return your Fulminator Mages to play.
Scapeshift
+3 Fulminator Mage
+3 Aven Mindcensor
-4 Lightning Bolt
-2 Volcanic Fallout
You're plan against Scapeshift is very similar to the Storm matchup. You need to attack their lands and resolve an Aven Mindcensor. They need seven lands minimum to combo off, so as long as you are able to keep them under that number, you should be in good shape. Path to Exiles stay in because they usually play Primeval Titan.
Tron
+3 Fulminator Mage
+3 Aven Mindcensor
+3 Stony Silence
-4 Lightning Bolt
-2 Volcanic Fallout
-2 Kitchen Finks
-1 Reveillark
Of all the combo decks in Modern, Tron is the easiest matchup. Tron is much more vulnerable to land destruction and we have lots of ways to keep them off Urzatron. The early clock is really important in this matchup, and a turn one Figure is the best clock you have.
Eggs
+3 Rule of Law
+3 Stony Silence
+3 Aven Mindcensor
-4 Path to Exile
-2 Volcanic Fallout
-3 Reveillark
Eggs is one of the tougher combo matchups. It's important to mulligan aggressively to a Stony Silence or a Rule of Law. Land Destruction really doesn't affect them at all, and Reveillarks are slow and awful. Lightning Bolt stays in this matchup because it does three damage to the face, and you need to kill them as quickly as possible. Once they draw their Echoing Truth, they will likely win.