---
name: "Biomancer's Familiar"
mana_cost: "{G}{U}"
cmc: 2
type_line: "Creature — Mutant"
colors: ["G", "U"]
color_identity: ["G", "U"]
keywords: []
set: "RNA"
set_name: "Ravnica Allegiance"
collector_number: "158"
rarity: "rare"
artist: "Izzy"
oracle_id: "923d44a9-774d-459c-9cec-1d5b081b51f0"
canonical_url: "https://avascry.com/printing/biomancers-familiar-rna"
legalities:
  commander: "legal"
  standard: "not_legal"
  modern: "legal"
  pioneer: "legal"
  legacy: "legal"
  vintage: "legal"
  pauper: "not_legal"
  penny: "legal"
---

# Biomancer's Familiar
- **Mana Cost:** `{G}{U}` (CMC: 2)
- **Type:** Creature — Mutant
- **Power/Toughness:** 2/2

## Oracle 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.

## Top 4096-Dim Neural Synergies
1. [Training Grounds](/printing/training-grounds-tle.md) — Enchantment
2. [Benthic Biomancer](/printing/benthic-biomancer-rna.md) — Creature — Merfolk Wizard Mutant
3. [Pollywog Symbiote](/printing/pollywog-symbiote-iko.md) — Creature — Frog
4. [Agatha of the Vile Cauldron](/printing/agatha-of-the-vile-cauldron-pwoe.md) — Legendary Creature — Human Warlock
5. [Heartstone](/printing/heartstone-sth.md) — Artifact
6. [Mutagen Man, Living Ooze](/printing/mutagen-man-living-ooze-tmt.md) — Legendary Creature — Ooze Mutant

## Printing Details
- **Set:** Ravnica Allegiance (RNA) #158
- **Rarity:** Rare
- **Artist:** Izzy
- **Total Printings:** 12 across all historical editions

## Format Legalities
Commander: `legal` | Standard: `not_legal` | Modern: `legal` | Pioneer: `legal` | Legacy: `legal` | Vintage: `legal` | Pauper: `not_legal` | Penny: `legal`