Is Madame Null, Power Broker good in Commander?

Madame Null, Power Broker in Commander

Madame Null, Power Broker lands on the battlefield and immediately taxes every opponent who wants to interact — her effect is felt the turn she enters, not three turns later. The cost is a four-mana legendary that does nothing offensive on her own, so she lives or dies by the supporting cast; pair her with Cleopatra, Exiled Pharaoh and that tax becomes a stranglehold.

Best Commanders

Commanders with the highest synergy

01

Cleopatra, Exiled Pharaoh

17.6% of decks · synergy 0.17

Cleopatra, Exiled Pharaoh's ability to drain opponents through incremental life loss stacks brutally with Madame Null, Power Broker's tax effect — every spell an opponent casts through the toll feeds Cleopatra's punishment engine, and opponents who choose not to pay fall behind on board.

02

Betor, Ancestor's Voice

17.1% of decks · synergy 0.15

Betor, Ancestor's Voice rewards stacking passive pressure effects, and Madame Null, Power Broker fits cleanly into that template — the tax slows opponents down enough that Betor can accumulate the triggers and value he needs to close games.

03

Ardyn, the Usurper

16.3% of decks · synergy 0.15

Ardyn, the Usurper benefits from any effect that bleeds opponents before combat, and Madame Null, Power Broker delivers that drain passively through the tax on interaction — opponents who pay are losing resources, and opponents who don't are giving Ardyn free rein.

04

Raphael, Fiendish Savior

14.3% of decks · synergy 0.14

Raphael, Fiendish Savior wants opponents stumbling while his Devils chip away, and Madame Null, Power Broker's toll effect creates exactly that stumble — the tax eats into the mana opponents need to answer Raphael's threats.

05

Marchesa, the Black Rose

12.7% of decks · synergy 0.12

Marchesa, the Black Rose plays a throne-of-thorns political game where attrition matters, and Madame Null, Power Broker is a natural fit — the tax punishes opponents for answering Marchesa's creatures and rewards the dethrone-and-recur loop by making every response expensive.

Format Analysis

Where it lives, where it can’t

Format	Verdict
commander	legal
legacy	legal
modern	legal
pioneer	legal
standard	legal
vintage	legal
pauper	not legal
oathbreaker	legal

Commander is where Madame Null, Power Broker earns her keep — a persistent tax across three opponents compounds fast, and the multiplayer environment gives her time to generate value before she's answered. In one-on-one formats like Legacy, Modern, Pioneer, and Standard she's too slow and too passive; a four-mana creature that doesn't threaten to win the game on its own rarely makes the cut when opponents can focus all their removal on a single target. Vintage is legal but the format's speed makes her irrelevant. Oathbreaker is the one non-Commander multiplayer home worth watching, where the same multi-opponent pressure that makes her strong in Commander applies.

Key Combos

Combo lines featuring this card

Price Context

Current price

$0.45 bulk tier

At $0.45, Madame Null, Power Broker is firmly bulk — accessible to any budget and easy to acquire as a throw-in. Bulk rares with narrow, niche-specific appeal tend to stay in this range unless a format breakout happens, so pick her up for the decks that want her and don't overthink it.