Tapping down a board is mostly the same as a fog
Just as an overview, if you were to resolve three cards that tempt you, your ring-bearer has the first three abilities of The Ring
Mazirek decks require you to strike the right balance between going wide, and also reliably having enough creatures to sacrifice to activate Mazireks ability

Aclazotz, Deepest Betrayal Angrath, the Flame-Chained Arbiter of Woe Arterial Flow Ashiok's Adept Bad Deal Bandit's Talent Basilica Bell-Haunt Bite of the Black Rose Bladecoil Serpent Bloodtithe Collector Braids's Frightful Return Braska's Final Aeon Burglar Rat Cackling Fiend Caligo Skin-Witch Cavern Whisperer Cruel Grimnarch Daemogoth Woe-Eater Disinformation Campaign Doomsday Confluence Dream Seizer Elderfang Disciple Elvish Doomsayer Entropic Battlecruiser Every Dream a Nightmare Green Goblin, Back for More Hecteyes Herald of Anguish Hopeless Nightmare Invasion of Amonkhet Junji, the Midnight Sky Kaya, Ghost Assassin Kroxa, Titan of Death's Hunger Let's Play a Game Liliana's Specter Malboro Mind Raker Myojin of Night's Reach Nezumi Informant Nicol Bolas, the Ravager Ninja of the Hand Noxious Toad Phyrexian Espionage Rafter Demon Refurbished Familiar Ripclaw Wrangler Screeching Buzzard Scythe Specter Send in the Pest Siren of the Silent Song Skullslither Worm Spellscorn Coven Spellscorn Coven Squeaking Pie Grubfellows Tasigur's Cruelty The Dark Barony The Eldest Reborn The Kami War The Raven Man The True Scriptures Thoughtrender Lamia Tinybones, Bauble Burglar Unnerve Vicious Rumors Victor, Valgavoth's Seneschal Virus Beetle Words of Waste

Astarions Thirst Secret Lair Drop In terms of financial value, this new Secret Lair drop only has one expensive card
I don't actually have much to say about Rabid Wombat other than the hilarity of a wombat card showing up here