The longer players can keep Aragorn and Arwen, Wed on the battlefield the better, especially if players can attack with it multiple times

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

Their creatures dominate yours in combat, so removing the first few is very important because you need to make it hard for them to take an aggressive posture
Scheming Silvertongue Lifegain decks are always on the lookout for payoffs and ways to use all that life, so Scheming Silvertongue has many homes