Even though Bygone Bishop triggered from more cards, it also cost mana to get the card advantage
Along with PSA, Beckett is considered among the very best when it comes to evaluating and valuing collectible cards

Ashling, the Limitless 0.2%inclusion 58 decks 23.3K decks Chatterfang, Squirrel General 0.0%inclusion 6 decks 27.4K decks Henzie "Toolbox" Torre 0.0%inclusion 6 decks 18.3K decks Meren of Clan Nel Toth 0.0%inclusion 3 decks 21.5K decks Hogaak, Arisen Necropolis 0.1%inclusion 2 decks 2.70K decks Yarok, the Desecrated 0.0%inclusion 2 decks 12.9K decks The Reaper, King No More 0.0%inclusion 2 decks 5.32K decks Gilanra, Caller of Wirewood // Tevesh Szat, Doom of Fools 1.3%inclusion 1 decks 76 decks Grist, the Hunger Tide 0.0%inclusion 1 decks 7.79K decks Jarad, Golgari Lich Lord 0.0%inclusion 1 decks 5.52K decks Izoni, Center of the Web 0.2%inclusion 1 decks 635 decks Old Rutstein 0.1%inclusion 1 decks 1K decks The Master, Transcendent 0.0%inclusion 1 decks 3.93K decks Teval, the Balanced Scale 0.0%inclusion 1 decks 35.6K decks Korvold, Fae-Cursed King 0.0%inclusion 1 decks 20.2K decks Witherbloom, the Balancer 0.0%inclusion 1 decks 14.5K decks Baba Lysaga, Night Witch 0.0%inclusion 1 decks 5.52K decks Maralen, Fae Ascendant 0.0%inclusion 1 decks 19.9K decks Savra, Queen of the Golgari 0.0%inclusion 1 decks 4.92K decks New Cards M.O.D.O.K

That said since the creatures at a very basic level improve when they come back, this mechanic can be a little tricky to balance and design extensively for