K-9, Mark I K-9, Mark I is the ultimate good boy for your Commander decks
Run for Your Life Making two creatures hasty and nearly unblockable can be quite valuable for 2 mana
That can only give you an idea of how horrible the initial iteration was
Top 10 Slime Against HumanitySlime Against Humanity Commanders Rishkar, Peema RenegadeRishkar, Peema Renegade Vorinclex, Monstrous RaiderVorinclex, Monstrous Raider Kodama of the West TreeKodama of the West Tree Shalai, Voice of PlentyShalai, Voice of Plenty Adrix and Nev, TwincastersAdrix and Nev, Twincasters Atraxa, Praetors' VoiceAtraxa, Praetors' Voice Renata, Called to the HuntRenata, Called to the Hunt Halana and Alena, PartnersHalana and Alena, Partners Mazirek, Kraul Death PriestMazirek, Kraul Death Priest Torens, Fist of the AngelsTorens, Fist of the Angels Well that is
The most frequent use for Stone is a close grindy game where you have the luxury of time to put fate counters on your own stuff
To this day, its one of my favorite black spells in MTG