Biomancer's Familiar
Biomancer's Familiar: Creature - Mutant, Ravnica Allegiance. Activated abilities of creatures you control cost 2 less to activate. On Mana Grove.
- Mana cost
- {G}{U}
- Mana value
- 2
- Type
- Creature - Mutant
- Colour identity
- Blue and green (UG)
- Power / toughness
- 2/2
- Rarity
- Rare
- Set
- Ravnica Allegiance (RNA)
- Released
- 2019-01-25
- Collector number
- 158
- Artist
- Izzy
- Commander rank
- 3,147 (by how often it appears in Commander decks)
Build around this card with Grover
About Biomancer's Familiar
Biomancer's Familiar is a Magic: The Gathering card, a rare blue and green creature from Ravnica Allegiance (RNA), an expansion set released in January 2019. It is collector number 158 in that set, with art by Izzy. It costs {G}{U} (one blue and one green mana) to cast, for a mana value of 2. It is a 2/2 creature. Its colour identity is blue and green. It is legal in Pioneer, Modern, Legacy, Vintage, Commander, Duel Commander, Oathbreaker, Brawl, Historic, Timeless, Gladiator and Penny Dreadful. It has been printed in 2 sets. The latest aggregated market price for this printing is $1.66 (normal finish, as of 2026-11-03).
Card text
Activated abilities of creatures you control cost {2} less to activate. This effect can't reduce the mana in that cost to less than one mana.
{T}: The next time target creature adapts this turn, it adapts as though it had no +1/+1 counters on it.
Market price
Latest aggregated market price for the normal finish of this printing: $1.66 (as of 2026-11-03).
The figure covers this printing only; other printings carry their own price on their own page.
Format legality
Legality of Biomancer's Familiar by format. Formats in which it is not legal are not listed.
| Pioneer | Legal |
|---|---|
| Modern | Legal |
| Legacy | Legal |
| Vintage | Legal |
| Commander | Legal |
| Duel Commander | Legal |
| Oathbreaker | Legal |
| Brawl | Legal |
| Historic | Legal |
| Timeless | Legal |
| Gladiator | Legal |
| Penny Dreadful | Legal |
Other printings of Biomancer's Familiar
Biomancer's Familiar has been printed in 2 sets. The other printings are listed newest first, with the rarity and release year of each.
| Printing | Rarity | Year |
|---|---|---|
| Ravnica Allegiance Promos (PRNA) #158s | Rare | 2019 |
Official rulings
Four official rulings apply to Biomancer's Familiar, newest first.
- 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.
- 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.
- 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}.
- 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.
Similar cards
Other creature cards with a blue and green colour identity, ranked by how often they appear in Commander decks.