By playing one deck so consistently I got very comfortable with knowing what risks to take, when you needed to throw out a vulnerable Scepter, when you can afford to wait for a more assured one, when you need a specific thing on the Scepter to win, when you can throw it down with any old thing just to get some value, when to play as a combo deck, when to play the aggressor and when to play as control

Mono-Black Gix Aggro | Commander | Abe Sargent Commander (1) 1 Gix, Yawgmoth Praetor Creatures (44) 1 Order of Midnight 1 Basilica Screecher 1 Battlefly Swarm 1 Blade of the Oni 1 Blight Keeper 1 Burnished Hart 1 Cabal Therapist 1 Changeling Outcast 1 Crypt Ghast 1 Daggerdrome Imp 1 Dauthi Horror 1 Dauthi Marauder 1 Dauthi Slayer 1 Dauthi Voidwalker 1 Dreadmalkin 1 Duskhunter Bat 1 Eye Collector 1 Eyetwitch 1 Forsworn Paladin 1 Ghastly Gloomhunter 1 Gingerbrute 1 Gray Merchant of Asphodel 1 Gixian Puppeteer 1 Grim Hireling 1 Highborn Ghoul 1 Hope of Ghirapur 1 Nether Traitor 1 Nightshade Stinger 1 Nirkana Revenant 1 Nullpriest of Oblivion 1 Pilfering Imp 1 Prickly Boggart 1 Psychosis Crawler 1 Signal Pest 1 Solemn Simulacrum 1 Stirge 1 Stronghold Confessor 1 Tormented Soul 1 Unwilling Ingredient 1 Vampire Cutthroat 1 Vampire Nighthawk 1 Vault Skirge 1 Wei Night Raiders 1 Wei Scout Instants (7) 1 Baleful Mastery 1 Deadly Rollick 1 Dismember 1 Hero's Downfall 1 Malakir Rebirth // Malakir Mire 1 Rush of Vitality 1 Snuff Out Sorceries (1) 1 Demonic Tutor Since most of my decks costs one or two, and you'll be drawing tons of cards early and often, I am just running 37 lands plus the modal land we looked at earlier

(Slang alert: a creature's size is often referred to in terms of how "fat" that creature is!) This is a bit too small to be a true fattie (4/4 or better is required to shop at the Big and Tall store), but considering the Troll's defensive capabilities coupled with the fact that he still has three power for three mana, he's a mighty fine creature
Lets start by taking a look at the green commons
But unless you've got enough creatures on board to win with a Halo Fountain, you're not realistically getting to 15 loyalty counters without your opponents interfering first
Organic Extinction