Each member of the lower monsters has the ability to special summon another monster from hand, and when one is special summoned to the field their second effect activates, which varies based on each monster summoned--ranging from special summoning from the graveyard, to searching the deck, to raising attack
Here are some that may be relevant in the new story
And speaking of fur, a few of them may even be prone to fur balls
Galactus, Devourer of Worlds Grim Reaper's Scythe Loki, God of Mischief The Vision and Scarlet Witch Super-Soldier Serum Mole Man, Moloid Master Mjolnir, Hammer of Thor Captain Marvel, Earth's Protector Molecule Man Black Widow, Super Spy Ultron, Artificial Malevolence Jennifer Walters Ironheart, Clever Champion Royal Talon Fighter Jet King T'Challa Ultron the Annihilator Black Bolt, Inhuman King The Fantasticar Iron Man Armor Okoye, Might and Adored 20
When the opponent destroys Wattfox, it prevents them from Special Summoning any monsters or activating any effects for the rest of that turn, somewhat similar to how Pikachu's Static ability and many of its Electric-type attacks can paralyze its opponents.
Monastery Mentor Monastery Mentor dominates games with its token ability, plus those tokens have prowess themselves