Cheapest priced copy (Modern Horizons 3): $1.99 at Card Kingdom, near mint, their price list as of .
K'rrik, Son of Yawgmoth 
Legendary Creature — Phyrexian Horror Minion · 2/2 · Rare · Commander 2019 · #18
({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.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
9 printings · $1.99 to $37.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander 2019 | 18 | Rare | $2.29 | — |
| Final Fantasy: Through the Ages (Emet-Selch, Ascian) | 36 | Rare | $5.49 | $22.99 |
| Modern Horizons 3 | 274 | Rare | $1.99 | $1.99Out of stock |
| Modern Horizons 3 | 365 | Rare | $2.29 | $6.99 |
| Modern Horizons 3 | 479 | Rare | — | — |
| Judge Gift Cards 2021 | 2 | Rare | — | $37.99 |
| The List | C19-18 | Rare | $2.29 | — |
| Secret Lair Drop (Post, Son of Rich) | 1186 | Rare | $15.99Out of stock | $22.99 |
| Secret Lair Drop | 1204 | Rare | $4.49 | $7.49 |
6 rulings from Wizards of the Coast
- 23 August 2019K'rrik's last ability resolves before the spell that caused it to trigger. It resolves even if that spell is countered.
- 23 August 2019K'rrik's ability doesn't modify or reduce costs you pay. It changes only how you may pay those costs.
- 23 August 2019You can't pay 2 life to pay for generic mana in costs you pay, even if an effect says that you must spend black mana to pay that generic mana.
- 23 August 2019If a cost contains a mana symbol that may be paid in multiple ways, such as {B/R}, {B/P}, or {2/B}, you choose how you'll pay it before you do so. If you choose to pay {B} this way, K'rrik's ability allows you to pay life rather than pay that mana.
- 7 June 2024A Phyrexian mana symbol contributes 1 toward the mana value of a card, even if life is paid for it. Specifically, K'rrik's mana value is always 7.
- 7 June 2024K'rrik's ability lets you pay 2 life for {B} in any cost you pay, including the mana costs of spells, activation costs, and even costs for special actions (such as morph). Any time you pay mana, that's a cost.