Lets break down the differences in design, rarity, and value
Unchained Labrynth - Deck Explanation, Combo, and More It's always nice when a new deck shows up in a format, and even more so when that new deck is doing relatively well for itself
Ajani Vengeant Armageddon Bear Umbra Bend or Break Bontu's Last Reckoning Boom // Bust Catastrophe Chaos Orb Cleansing Decree of Annihilation Desolation Angel Devastation Elspeth Tirel Eye of Singularity Fall of the Thran From the Ashes Impending Disaster Jalum Grifter Jokulhaups Landfill Mine Layer Myojin of Infinite Rage Obliterate Ravages of War Ruination Scourglass Solar Tide Strategy, Schmategy The Argent Etchings Urza's Sylex Wake of Destruction Winter's Chill Wrath of Leknif (playtest) Zacama, Primal Calamity
Warning: don't confuse 'best' with 'valuable'
If you have just three, then four mana makes four 1/1s for everyone, and then one removal spell that kills them all will net 12 treasures for yourself, and you are ready to go
Equipped creature gets +2/+0 and has vigilance