Biomancer's Familiar
Ravnica Allegiance (RNA)
Creature — Mutant
Activated abilities of creatures you control costConstructed
Commander
Arena
Other
Used in 314 known combosEDHREC #3,146
Versions
2 printings · from $1.75
Rulings
4 · latest Jan 25, 2019
- WotCJan 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.
- WotCJan 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
.
- WotCJan 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.
- WotCJan 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.

