Biomancer's Familiar

As of Jul 23, 2026, the cheapest tracked printing of Biomancer's Familiar is $1.74 (RNA #158), and the most expensive is $20.71 (PRNA #158s, Prerelease, Foil). The benchmark price (cheapest playable nonfoil) is $1.74, up 10.1% over 7 days, up 28.9% over 30 days, up 42.6% over 90 days. All-time tracked high: $1.74 (2026).

Biomancer's Familiar has 2 tracked printings across 2 sets, in nonfoil and foil finishes, including prerelease treatments.

RNA #158

$1.74

CK $2.99 / $1.35 22%

RNA #158 Foil

$14.46 +731%

CK — / $14.00 3%

PRNA #158s Prerelease Foil

$20.71 +1090%

CK $22.99 / $14.50 30%

Card Kingdom currently pays $14.50 cash for PRNA #158s (Foil); the retail-buylist spread on that printing is 37% (normal).

• Jan 25, 2019 Activated abilities contain a colon. They’re generally written “[Cost]: [Effect].” Some keyword abilities are activated abilities and will have colons in their reminder text. Triggered abilities (starting with “when,” “whenever,” or “at”) are unaffected by the cost reduction ability of Biomancer’s Familiar.
• Jan 25, 2019 An ability that has only one generic mana and some amount of other mana symbols in its activation cost will have its cost reduced by {1}.
• Jan 25, 2019 Biomancer’s Familiar affects only abilities of creatures you control on the battlefield. The costs of activated abilities of creature cards that work in other zones (such as cycling) won’t be reduced.
• Jan 25, 2019 The last ability of Biomancer’s Familiar doesn’t add or remove any counters. It just lets the creature adapt despite already having +1/+1 counters on it.

Biomancer's Familiar has been reprinted 3 times.

Set	Date	Rarity	Treatment
PRNA #158s	2019-01-25	Rare	Prerelease
RNA #158	2019-01-25	Rare	Standard
RNA #158	2019-01-25	Rare	Standard

Biomancer's Familiar is the #3,180 most-played card on EDHREC, up 82 places over the last 30 days.