By far my favourite deck of the modern format. It's combo, non-interactive and completely unfair.
My current record at the local Wednesday night modern is 23-5 (Four round tournaments). 3 losses to Twin variants, 1 to affinity and 1 to Mono White Hatebears.
If you have no clue about the deck, I'd suggest starting with the Reuben Bresler Deck Tech as it can explain things much easier than I can.
Planned Changes
MB:
Fetches after they get reprinted (hah)
Looking at mtggoldfish, I saw a few lists running 21 lands and removing the Conjurer's Bauble. Yes you auto lose if Lightning Storm gets binned, but 4x Sideboard Leyline of Sanctity should help and 1 card of 60 being an auto loss isn't that bad.
Sideboard Reasoning
Leyline of Sanctity - Amazing against discard, can win the game before anything happens. Needed vs mill and just plain funny against burn
Hurkyl's Recall - Affinity is very up and down in popularity in my meta, so these are usually needed.
Rest in Peace - GY Hate
Slaughter Pact - For those must kill creatures, twin, pod, etc.
Torpor Orb - This needs to be changed, Pod/Twin hate, but I feels it's weak in this deck.
Silence - Counterflux is a real card that you need to play around.
Defense Grid - Trying them out as I only have major problems with Twin. This has been very good so far.
Echoing Truth - For permanent based hate.
Laboratory Maniac - Against life gain and other situations where Lightning storm isn't great.