Update 4 (September 2019):
TESTING IN PROGRESS...
Maindeck:
-1 Dark Depths
-1 Thespian's Stage
-4 Deathrite Shaman
-1 Qasali Pridemage
-2 Stoneforge Mystic
-1 Sword of Fire and Ice
-1 Tireless Tracker
-1 Sylvan Library
+1 Maze of Ith
+1 Gaea's Cradle
+1 Swamp
+3 Noble Hierarch
+1 Knight of Autumn
+1 Umezawa's Jitte
+1 Mother of Runes
+2 Plague Engineer
+1 Ramunap Excavator
Sideboard:
-1 Gaddock Teeg
-1 Sylvan Library
-1 Qasali Pridemage
-1 Pithing Needle
-1 Mindbreak Trap
-1 Council's Judgment
-2 Winter Orb
-1 Garruk Relentless
+1 Sanctum Prelate
+1 Thoughtseize
+2 Surgical Extraction
+1 Ethersworn Canonist
+2 Containment Priest
+2 Palace Jailer
Update 3:
Maindeck:
-1 Plains
-1 Thalia, Heretic Cathar
+1 Bayou
+1 Tireless Tracker
Sideboard:
-1 Abrupt Decay
-1 Council's Judgment
-1 Pithing Needle
+1 Garruk Relentless
+2 Winter Orb
Now, compared to what seems like the "stock" Maverick list if such a thing exists, the differences between my deck and that are:
-1 Bayou
-1 Gaea's Cradle
-1 Mother of Runes
-1 Thalia, Guardian of Thraben
-1 Sword of Light and Shadow
+1 Thespian's Stage
+1 Dark Depths
+1 Tireless Tracker
+1 Titania, Protector of Argoth
+1 Sylvan Library
Update 2:
Maindeck:
-2 Bayou
-1 Verdant Catacombs
-2 Dark Confidant
-1 Maze of Ith
-1 Thalia, Guardian of Thraben
+1 Forest
+1 Plains
+1 Wasteland
+2 Swords to Plowshares
+1 Deathrite Shaman
+1 Thalia, Heretic Cathar
Sideboard:
-1 Garruk Relentless
-1 Swords to Plowshares
-1 Sylvan Safekeeper
-2 Thoughtseize
+1 Sylvan Library
+1 Abrupt Decay
+1 Mindbreak Trap
+2 Pithing Needle
Update 1:
Maindeck:
-4 Marsh Flats
+4 Verdant Catacombs
An upgrade now that I have Verdant Catacombs (would rather fetch Forest or Dryad Arbor than Plains)
-1 Sejiri Steppe
-1 Ghost Quarter
+2 Wasteland
Now that I have 3 Wastelands I had to make room for the other 2. Replacing Ghost Quarter is an upgrade and Sejiri Steppe seemed like the worst other land although I do still like it.
-1 Sword of Light and Shadow
+1 Sword of Fire and Ice
I like both swords, but I ran into too many situations where I could connect with the sword but had nothing in my graveyard to bring back.
-4 Thoughtseize
+4 Thalia, Guardian of Thraben
Thalia seems better now that I have more Wastelands.
-1 Sylvan Safekeeper
+1 Stoneforge Mystic
I was running into situations where all I had were protection creatures and nothing worth protecting. I still like having this in my sideboard to bring in for matchups where protecting a hatebear could be key to winning.
-2 Swords to Plowshares
+2 Dark Confidant
This change is probably bad, but I'm currently testing it.
Sideboard:
-3 Ethersworn Canonist
-1 Thalia, Guardian of Thraben
+4 Thoughtseize
Now that Thalias are maindeck I want access to all 4 Thoughtseizes after sideboarding to fight combo.
-2 Wrath of God
-1 Abrupt Decay
+1 Sylvan Safekeeper
+1 Swords to Plowshares
+1 Zealous Persecution
Zealous is better than Wrath in a lot of cases, and I need room for some cards I still want but are taken out of the maindeck.
-1 Bojuka Bog
-1 Surgical Extraction
+2 Choke
I play against slower blue decks a lot more than I play against graveyard decks, and I still have tutorable Scavenging Ooze and Deathrite Shamans to deal with the graveyard in the maindeck.
Initial description (from ~2016):
The Maverick deck I'm currently playing on MTGO and in paper. This is the most fun deck I've ever played in any magic format, and now my main deck/format since Twin was banned in modern. It feels like you have some chance against everything which I really enjoy. I like having a green creature toolbox and a land toolbox.
