Created card: Avalanche Riders Urza's Legacy
Combine Pendrell Mists with any kind of mana denial and youve got a recipe for a very rough game
Focusing on discard is certainly the most common, and its quite effective with cards like Containment Construct to help break symmetry, but you can toy around with sacrifice synergies and even fiddle with a group-hug-esque strategy depending on your card choices

Without further ado, here are the Top 20 Most Expensive MTG Cards in Standard Right Now : #1 Sheoldred, the Apocalypse $75 #2 The Meathook Massacre (banned)- $38 #3 Mondrak, Glory Dominus $38 #4 Agathas Soul Cauldron $36 #5 Boseiju, Who Endures $35 #6 Cavern of Souls $34 #7 Roaming Throne $30 #8 Portal to Phyrexia $26 #9 Elesh Norn, Mother of Machines $23 #10 Ojer Taq, Deepest Foundation $23 #11 Vein Ripper $22 #12 Myrel, Shield of Argive $22 #13 Otawara, Soaring City $21 #14 Kodama of the West Tree $21 #15 Atraxa, Grand Unifier $20 #16 Bloodletter of Aclazotz $19 #17 Urabrask $18 #18 Sheoldred $18 #19 Beseech the Mirror $18 #20 Toxrill, the Corrosive $18 Those are the top 20 most valuable cards in Standard as of the time of writing
Balnazaars Fortress Plane: Nether Realm Lands you control have T: Add to your mana pool
Decks with a unique game plan like this one are sometimes easier to counter because they lack versatility, but theyre also some of the most fun to play