3 is really asking how much you are willing to pay for this effect
Aphelia, Viper Whisperer Archetype of Finality Arisen Gorgon Damia, Sage of Stone Gorgon Recluse Hythonia the Cruel Infernal Medusa Keepsake Gorgon Korozda Gorgon Loathsome Curator Masked Gorgon Persuasive Interrogators Pharika's Mender Pharika's Spawn Pitiless Gorgon Rattleback Apothecary Reaper of the Wilds Scourge of the Undercity Sisters of Stone Death Tam, Mindful First-Year Tam, Observant Sequencer Undercity Eliminator Venomous Hierophant Visara the Dreadful Vraska's Finisher Vraska, the Silencer Xathrid Gorgon
They can contribute to affinity and improvise, and are a low-impact artifact to sacrifice to cards like Arcbound Ravager or Atog
Basilisk Collar Besides being cheap and granting lifelink, Basilisk Collar sees play in decks that care about pinging their opponents
Dina, Essence Brewer Dina, Essence Brewer gives you a rare reason to sacrifice large creatures instead of meaningless fodder
