Luckily, it has a Retreat Cost of one, so it can also get out of the way if its HP gets too low
Weve already talked about Invisible Stalker at length, but there are also classics like Blasphemous Act, Geralfs Messenger, Grafdiggers Cage, and many, many more
But seriously it's the philosophy behind why cards get added to the Game Changer list
(If a creature with a finality counter on it would die, exile it instead.) Finality counters work on any permanent, not only creatures

Adaptive Sporesinger Agent Frank Horrigan Atomize Atraxa, Praetors' Voice Blightbelly Rat Bloated Contaminator Bloom Hulk Brimaz, Blight of Oreskos Brokers Confluence Cacophony Scamp Cankerbloom Carnival Elephant Meteor Carnivorous Canopy Cayth, Famed Mechanist Contagion Clasp Contagion Engine Contagious Vorrac Contaminant Grafter Contentious Plan Copper Longlegs Core Prowler Courage in Crisis Dreamtide Whale Drown in Ichor Everythingamajig Evolution Sage Expand the Sphere Expansion Algorithm Experimental Augury Ezuri, Stalker of Spheres Filigree Vector Flux Channeler Fuel for the Cause Gitaxian Anatomist Glistening Sphere Grateful Apparition Grim Affliction Guildpact Informant Gulping Scraptrap High Perfect Morcant Huatli's Raptor Ichormoon Gauntlet Inexorable Tide Karn's Bastion Kilo, Apogee Mind Kiora's Dambreaker Lulu, Stern Guardian Martyr for the Cause Merfolk Skydiver Mesmerizing Dose Metastatic Evangel Mutational Advantage Norn's Choirmaster Park Heights Maverick Patrolling Peacemaker Phyrexian Seedling (playtest) Plaguemaw Beast Planewide Celebration Pollenbright Druid Proud Pack-Rhino Radstorm Recon Craft Theta Reject Imperfection Ripples of Potential Roalesk, Apex Hybrid Scheming Aspirant Serum Snare Smell Fear Spread the Sickness Staff of Compleation Steady Progress Surge Conductor

A tuned Grumgully persist combo deck will have a handful of possible replacements for each piece of the combo