Biomancer's Familiar [Ravnica Allegiance Prerelease Promos] Sorcery lands you control gain "Sacrifice

lands you control gain "Sacrifice this land: Add {B}

she embodies white mana and helps whole civilizations develop while both directly and indirectly inspiring countless individuals to be steadfast and strong in the service of light

Duplicant has the power

defending player sacrifices four permanents

Biomancer's Familiar [Ravnica Allegiance Prerelease Promos] Sorcery lands you control gain "SacrificeSet: Ravnica Allegiance Prerelease Promos Type: Creature Mutant Rarity: Rare Cost: {G}{U} 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.