Heartless Hidetsugu

Gameplan

Drop Heartless Hidetsugu, give him haste, and tap him to slash the table's life in half on demand. From there you assemble a one-shot kill with a damage doubler that hits opponents harder than you, a repeatable untap to chain halvings, or a life-loss amplifier like Wound Reflection. The deck is a focused combo/burn engine that races to convert one or two Hidetsugu activations into a dead table.

Key Cards

• Gratuitous Violence — Doubles only your creatures' damage, so Hidetsugu deals full life to opponents while you still only take the halved amount.
• Furnace of Rath — Doubles all combat and noncombat damage, turning one tap into a lethal full-life hit to every opponent at even life.
• Wound Reflection — Halve everyone's life, then they lose that same amount again on their upkeep—an easy two-card kill.
• Platinum Emperion — Locks your life total so you take zero from Hidetsugu, letting you fire freely while opponents melt.
• Umbral Mantle — Untaps Hidetsugu for repeated halvings in a single turn, grinding any life total down to zero.
• Thousand-Year Elixir — Gives haste and an untap, letting Hidetsugu combo the turn he lands.
• Swiftfoot Boots — Haste plus hexproof keeps the commander online and protected from targeted removal.

Upgrade Path

Add fast mana (Sol Ring, Mana Crypt, Jeska's Will) and tutors like Gamble and Imperial Recruiter to find Umbral Mantle or your protection piece consistently. Round out redundancy with multiple untappers and a self-protecting layer (Platinum Emperion, Boots/Greaves) so a single removal spell doesn't end your turn. Trim slow stax and durdle cards in favor of cheap recursion (Faithless Looting, Underworld Breach) to rebuild Hidetsugu after a wipe and shorten the clock to a turn-three or four kill.