Lets get to it, starting with one of the most degenerate sets of all time: Urzas Saga Significant cards on the list: Argothian Wurm $3 Gaeas Cradle $70 Gilded Drake $30 Karn, Silver Golem $4 Lifeline $4 Lightning Dragon $3 Morphling $10 Serras Sanctum $20 Tolarian Academy $25 Temporal Aperture $2 Time Spiral $25 Yawgmoths Will $15 Of these, only three can fairly be called tournament staples: Gilded Drake, Serras Sanctum, and Time Spiral
It's literally a rhinoceros train that's gone off the rails
As the game goes on, more and more Crusades hit the table, making guys like White Knight into potentially 6/6 first-striking monstrosities
Who needs a proper mana curve when you have turn-4 Eldrazi and your opponents dont have Path to Exile
Deathgazer and Dread Specter outright kill any creature that blocks them
Ghalta and Mavren is an exception because it combines the abilities of both legendary creatures