While you're free to jump into any difficulty, depending on skill, I'd recommend going through all of them and starting with Beginner
The answer may surprise you given how prevalent Normal Monsters were in the early days of the game, but there's only 1 Normal WIND Monster in the entire game that requires 2 Tributes, that being Leonardo's Silver Skyship which was given out at the 2014 World Championship, is exceptionally rare to find, and completely banned from any competitively play
#6: Battle City Tournament Pack (BCTP) Not a standard booster, but a tournament-exclusive set that holds serious collector value
9 Eldrazi Displacer One of the smaller Eldrazi, all things considered, Eldrazi Displacer is the only white Eldrazi in print, barring a few double-faced creatures and the devoid ability
Many are trying to pull off Johnny shenanigans, like Prodigal Sorceror to grow a Fungusaur, or Tawnos's Wand for an unblockable Hypnotic Specter