Spell Normal Add 1 Level 7 or lower monster from your Deck to your hand, that mentions "Umi", or is a WATER Normal Monster, then if "Umi" is on the field, you can Special Summon 1 WATER Normal Monster from your Deck
All prices are correct at the time of writing, but as with most commodities, are likely to change with time and demand

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
Im excited to see what this will bring
Mansions of Madness: Second Edition Card Sleeves Bundle All the transparent card sleeves you need to protect the cards from Mansions of Madness: Second Edition Enjoy peace of mind during your game nights, knowing they wont be spoiled by a spilled drink
Some stick to the Lorcana League format, and encourage friendly play and themes