Blackcleave Goblin Blight Mamba Blighted Agent Blightsteel Colossus Blightwidow Burn the Impure Carrion Call Chained Throatseeker Contagious Nim Core Prowler Corpse Cur Corrupted Conscience Cystbearer Fallen Ferromancer Flensermite Flesh-Eater Imp Glistener Elf Glistening Oil Grafted Exoskeleton Hand of the Praetors Happy Dead Squirrel Ichor Rats Ichorclaw Myr Inkmoth Nexus Lost Leonin Melira, Sylvok Outcast Mindcrank Necropede Ogre Menial Pestilent Souleater Phyresis Phyrexian Crusader Phyrexian Digester Phyrexian Hydra Phyrexian Juggernaut Phyrexian Swarmlord Phyrexian Unlife Phyrexian Vatmother Plague Myr Plague Stinger Priests of Norn Putrefax Razor Swine Reaper of Sheoldred Rot Wolf Scourge Servant Septic Rats Shriek Raptor Skithiryx, the Blight Dragon Skithiryx, the Blight Dragon Spinebiter Tainted Strike Tangle Angler Tel-Jilad Fallen Tine Shrike Toxic Nim Trigon of Infestation Triumph of the Hordes Vector Asp Viral Drake Viridian Betrayers Viridian Corrupter Whispering Specter

The Saga enters the battlefield with the chosen number of lore counters
These enormous, hugely impactful cards are limited only by their transience, as they dont survive past the end step if you play them with Purphoros
Many of these only require two extra cards, as well, and can even end the game on the spot
If your creature can naturally come back from the graveyard a different way, like Gravecrawler, then you can flip-flop between reviving your creature the normal way and ascending them into heaven