The Next King of Games is the tutorial.
I cleared these to get to the packs:
A Duel in Love
The Shadow Duelist
For the Sake of Syrus
Formula for Success
Doomsday Duel
Field of Screams
Duel Distractions
A Reason to Win
Amnaels Endgame
Rise of the Sacred Beasts
Magna Chum Laude