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K'rrik, Son of Yawgmoth

Legendary Creature — Phyrexian Horror Minion

({B/P} can be paid with either {B} or 2 life.)
Lifelink
For each {B} in a cost, you may pay 2 life rather than pay that mana.
Whenever you cast a black spell, put a +1/+1 counter on K'rrik.

CMC
7
Mana cost
{4}{B/P}{B/P}{B/P}
Color identity
B
Rarity
rare
Set
Secret Lair Drop
Price
$3.08
EDHREC rank
#1066
Buy on TCGplayer
K'rrik, Son of Yawgmoth card art
K'rrik, Son of Yawgmoth lets you pay life instead of black mana, which in a mono-black shell effectively means your entire hand costs life — and a deck built around him will often goldfish a win before opponents can respond. The cost is real: you're spending a six-mana commander slot and your life total as a resource, but pairing him with Sheoldred, the Apocalypse or Rowan, Scion of War converts that life drain into fuel fast enough that it stops mattering.

Best Commanders

Commanders with the highest synergy

01
Rowan, Scion of War

Rowan, Scion of War

71.2% of decks · synergy 0.68

Rowan, Scion of War reduces spell costs based on life lost this turn, and K'rrik, Son of Yawgmoth generates that life loss on demand every time you cast a black spell — the two create a self-reinforcing loop where each activation of K'rrik makes the next spell cheaper through both abilities simultaneously.

02
Valgavoth, Terror Eater

Valgavoth, Terror Eater

68.6% of decks · synergy 0.49

Valgavoth, Terror Eater grows whenever opponents lose life, and K'rrik, Son of Yawgmoth's Phyrexian mana payments keep the life-loss triggers flowing without requiring any additional setup — K'rrik is essentially a passive Valgavoth counter engine.

03

Cecil, Dark Knight

49.5% of decks · synergy 0.47

Cecil, Dark Knight cares about paying life and dealing damage in the same turn, and K'rrik, Son of Yawgmoth makes life payment trivially easy on any black spell, letting Cecil trigger consistently without dedicating extra card slots to life-loss effects.

04
Mister Negative

Mister Negative

47.2% of decks · synergy 0.44

Mister Negative inverts +1/+1 counters into -1/-1 counters and vice versa, and K'rrik, Son of Yawgmoth provides the cheap, repeatable black-spell casting that floods the battlefield with counters for Mister Negative to exploit.

05
Acererak the Archlich

Acererak the Archlich

62.7% of decks · synergy 0.44

Acererak the Archlich bounces itself until you've completed enough dungeons, and K'rrik, Son of Yawgmoth lets you recast Acererak multiple times per turn by paying life instead of the full mana cost, dramatically accelerating dungeon completion.

Format Analysis

Where it lives, where it can’t

FormatVerdict
commander legal
legacy legal
modern legal
pioneer not legal
standard not legal
vintage legal
pauper not legal
oathbreaker legal

Commander is where K'rrik, Son of Yawgmoth is genuinely broken — mono-black combo decks use him as the engine that collapses the mana economy entirely, converting life into a same-turn storm of spells that opponents can't interact with at sorcery speed. In Legacy and Vintage, he's legal but essentially irrelevant; those formats move faster than a six-mana creature can, and dedicated combo decks there don't need the life-payment shortcut. Oathbreaker offers a smaller, faster-paced arena where K'rrik could theoretically function, but the 20 starting life in that format makes the life-payment math punishing in a way Commander's 40-life baseline isn't. He was never printed at Pioneer-legal rarity, so that format is off the table entirely.

Key Combos

Combo lines featuring this card

Price Context

Current price

$3.08 cheap tier

At $3.08, K'rrik, Son of Yawgmoth is dramatically underpriced for a card that functions as the primary engine of entire competitive Commander archetypes. That price is unlikely to erode further given his sustained play rate — he's a cheap entry point into a genuinely powerful strategy.

Explore

Sources

Mentioned

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Updated . Data from Scryfall, EDHREC, and Commander Spellbook.