(1) Paper tracker token
I was so focused on the life per card ratio that I ignored everything else going on in Necropotence
Inverter of Truth Inverter of Truth was released in 2016, it spent four years gathering dust before dominating the early days of the Pioneer format For two mana of any color and two Black, Inverter of Truth is a 6/6 flyer that exiles its controllers library when it enters play

Ashad, the Lone Cyberman Ashling, the Limitless Astrid Peth Bag of Devouring Baloth Prime Biotech Specialist Blood Aspirant Blood Hypnotist Bloodbriar Body Dropper Burdened Aerialist Camellia, the Seedmiser Captain Lannery Storm Captain Lannery Storm Crime Novelist Desert Warfare Dina, Essence Brewer Dragon Appeasement Effluence Devourer Eloise, Nephalia Sleuth Esoteric Duplicator Evendo Brushrazer Experimental Confectioner Fleeting Memories Fleshtaker Forge Boss Furnace Celebration Giant Fly Gixian Infiltrator Gleaming Geardrake Gluttonous Guest Graf Mole Havoc Jester Hearthhull, the Worldseed Jenny Flint Juri, Master of the Revue Kels, Fight Fixer Kingpin, Wilson Fisk Korvold, Fae-Cursed King Lazav, Wearer of Faces Lightless Evangel Lonis, Genetics Expert Magnetic Snuffler Martha Jones Moonstone Eulogist Narci, Fable Singer Nuka-Cola Vending Machine Persuasive Interrogators Piper Wright, Publick Reporter Pirate Peddlers Popular Egotist Prowling Geistcatcher Rakdos, the Muscle Rapacious Guest Ravenous Squirrel Riveteers Ascendancy Rose, Cutthroat Raider Ruthless Deathfang Sandbender Scavengers Sanguine Brushstroke Sanguine Statuette Savra, Queen of the Golgari Scavenger's Talent Scouring Swarm Senator Peacock Sierra, Nuka's Biggest Fan Skittering Precursor Slaughter-Priest of Mogis Slayer's Bounty Smothering Abomination Sorcerer's Broom Szarel, Genesis Shepherd

This defensive scaling raises her baseline durability to a formidable 7000 power threshold, forcing opponents to expend a large amount of resources just to threaten her
I primarily focused on Commander and Cube for these rankings