They are all banished at the same time and go to the discard pile
Specifically, this deck wants to be able to draw two cards per turn to benefit from cards like Foggy Swamp Spirit Keeper

Isamaru, Hound of Konda K-9, Mark I Karlov Watchdog Karplusan Hound Karvanista, Loyal Lupari Komainu Battle Armor Kroxa and Kunoros Kunoros, Hound of Athreos Labro Bot Lava Hounds Leashling Lightning Hounds Lockjaw, Slobbering Teleporter Longshot Squad Loyal Warhound Lucky the Pizza Dog Mad Dog Mischievous Pup Mogis's Warhound Mongrel Pack Monstrous Hound Moon-Eating Dog Mortis Dogs Mossdog Mowu, Loyal Companion Mushroom Watchdogs Pack Leader Pack Mastiff Pako, Arcane Retriever Patrol Hound Pet Avengers Phantom Whelp Phelia, Exuberant Shepherd Plague Dogs Pyre Hound Rakdos Ragemutt Rambunctious Mutt Rescue Retriever Resolute Watchdog Rex, Cyber-Hound Rin and Seri, Inseparable Salt Road Ambushers Sandsteppe Scavenger Scrapwork Mutt Scrapyard Mongrel Selfless Savior Slumbering Cerberus Snarling Gorehound Snow Hound Spirited Companion Sterling Hound Stonebinder's Familiar Summon: G.F

4) Ingenious Infiltrator Cards like Toski, Bearer of Secrets are phenomenal card advantage engines for decks that want to be attacking in combat
Grade: D Final Reward was awful in hyperaggressive Amonkhet (where it shutting down Embalm creatures didnt matter, since almost no one had time to use them)