Share Intelligence — Whenever Sergeant John Benton deals combat damage to a player, you and that player each draw that many cards.
Suit up Benton and swing early thanks to trample and haste, converting combat damage into a massive symmetric card draw that refuels you for the next attack. You're a midrange Selesnya beatdown deck that uses the extra cards to deploy threats faster than the table can answer them, then closes via commander damage or an overrun. The catch is the draw is symmetric, so you build to weaponize your own card flow while making your attacks lethal enough that opponents never cash in their cards.
Cheap 3-mana commander with built-in haste and trample for immediate pressure
Massive card advantage that keeps your hand stocked even in long games
Trample means counters/anthems convert directly into bigger draws and unblockable damage
Can be a Doctor's companion, opening flexible partner builds
Share Intelligence also refuels the player you hit, accelerating your opponents
Dies to spot removal easily as a 3/3-sized body before buffs
No evasion beyond trample, so big blockers wall him
Symmetric draw can revive a flooded or stalled opponent you'd rather keep starved
GW lacks the blue tools (Notion Thief, etc.) to one-sidedly exploit extra draws
Legendary Creature — Human Soldier
