Such a permanent cant be targeted by spells or abilities, enchanted by Auras, equipped with Equipment, fortified by Fortifications, or blocked by creatures, and all damage that would be dealt to it is prevented
Lightning, Army of One Lightning, Army of One has a powerful damage doubling ability thats a perfect political tool in Commander
Casey joins the game with all his gear bag, Improvised Arsenal
As MTG evolves and WotC continues pushing the boundaries of card design, well see plenty more cards that say you cant win or lose, or alternate win conditions, especially in EDH-related design
All Fairy Tera Shard Fighting Tera Shard Fire Tera Shard Fluffy Tail Flying Tera Shard Galarica Twig Ghost Tera Shard Gold Bottle Cap Gold Leaf Gooey Mulch Gorgeous Box Grass Tera Shard Ground Tera Shard Green Shard Grn Apricorn Growth Mulch Heart Scale Honey Ice Tera Shard Leaf Letter Lone Earring Lure Marble Max Lure Max Repel Mega Shard Normal Box Ice Tera Shard Nugget Odd Keystone Pass Orb Pearl Pearl String Pink Nectar Pnk Apricorn Poison Tera Shard Pok Doll Pok Toy Polished Mud Ball Pretty Feather Psychic Tera Shard Purple Nectar Rare Bone Red Apricorn Red Flute Red Nectar Red Shard Relic Band Relic Copper Relic Crown Relic Gold Relic Silver Relic Statue Relic Vase Repel Rock Tera Shard Roto Bargain Roto Catch Roto Encounter Roto Exp