This land-heavy card spread makes a lot of sense given that the face Commander (Yuma, Proud Protector) offers you the chance to sacrifice land to draw a card and create creature tokens
This is reflected on the card with the "You Coward!" ability that forces any character with an "Evade" trait to challenge
First, I wanted to learn as much as I could about Lithographic Print Presses and the process of making Magic cards

Ive gone through our choices grouped by mana cost, with notes about what each one provides: One Mana Galerider Sliver (flying), Striking Sliver (first strike), Metallic Sliver (vanilla colorless), Mindlash Sliver (sac, everyone discards), Plated Sliver (+0/+1), Screeching Sliver (tap, mill 1), Sidewinder Sliver (flanking), Virulent Sliver (poisonous 1) Two Mana Sentinel Sliver (vigilance), Manaweft Sliver (tap for mana), Predatory Sliver (+1/+1), Acidic Sliver (sac, Shock), Cautery Sliver (sac, 1 damage dealt or prevented), Clot Sliver (regenerate for mana), Crypt Sliver (tap to regenerate), Crystalline Sliver (shroud), Darkheart Sliver (sac, gain 3 life), Frenzy Sliver (frenzy 1), Gemhide Sliver (tap for mana), Ghostflame Sliver (all slivers become colorless), Heart Sliver (haste), Hibernation Sliver (pay 2 life, return to hand), Hunter Sliver (provoke), Mistform Sliver (1: gain another creature type), Muscle Sliver (+1/+1), Quick Sliver (flash), Quilled Sliver (tap, ping combatants), Sinew Sliver (+1/+1), Spined Sliver (+1/+1 for each blocker), Spinneret Sliver (reach), Talon Sliver (first strike), Two-Headed Sliver (Goblin War Drums), Victual Sliver (2, sac: gain 4 life), Winged Sliver (flying) Three Mana Steelform Sliver (+0/+1), Syphon Sliver (lifelink), Blur Sliver (haste), Sliver Construct (vanilla colorless), Armor Sliver (2: +0/+1), Barbed Sliver (2: +1/+0), Basal Sliver (sac, add BB), Blade Sliver (+1/+0), Firewake Sliver (1, sac, give Sliver +2/+2), Frenetic Sliver (Frenetic Efreet), Harmonic Sliver (Naturalize), Homing Sliver (slivercycling), Horned Sliver (trample), Mindwhip Sliver (2, sac: player discards at random), Mnemonic Sliver (2, sac: draw a card), Necrotic Sliver (3, sac: destroy permanent), Opaline Sliver (if targeted by a spell, draw a card), Poultice Sliver (2, tap: regenerate), Sedge Sliver (Sedge Troll), Shadow Sliver (shadow), Spectral Sliver (2: +1/+1) Four Mana Bonescythe Sliver (double strike), Bonesplitter Sliver (+2/+0), Dormant Sliver (defender, Glimpse of Nature), Essence Sliver (lifelink), Fungus Sliver (Fungusaur), Magma Sliver (tap, +X/+0, X=#of Slivers), Mesmeric Sliver (fateseal 1), Plague Sliver (Juzm Djinn drawback), Reflex Sliver (haste), Root Sliver (cant be countered), Shifting Sliver (cant be blocked by non-Slivers), Telekinetic Sliver (Opposition), Toxin Sliver (deathtouch), Vampiric Sliver (Sengir Vampire), Watcher Sliver (+0/+2) Five Mana Battle Sliver (+2/+0), Thorncaster Sliver (Hellrider), Brood Sliver (combat damage to a player, make a Sliver token), Dementia Sliver (tap, name a card, look at opponents hand and discard it), Lymph Sliver (absorb 1), Might Sliver (+2/+2), Psionic Sliver (Psionic Entity), Pulmonic Sliver (if dies, may put it ontop of owners library), Spitting Sliver (first strike), Synapse Sliver (combat damage to player, draw a card), Synchronous Sliver (vigilance), Vensers Sliver (vanilla colorless), Ward Sliver (protection from color of choice) Six Mana Megantic Sliver (+3/+3), Battering Sliver (trample), Fury Sliver (doublestrike) Seven Mana Groundshaker Sliver (trample) Wow, thats a lot of slivers

Brazen BorrowerBrazen Borrower can come in handy at any time, as its flash ability makes it easy to cast and provides a body on the field in a time of need
I think this is my favorite Squirrel commander of the set