You could try listening on 1.5x or even 2x speed and have MaRo sound even more manic than usual, but I will indulge you.
Both episodes are taking a "mind map" type approach to designing a draft environment.
LPR suggest designing a cube by picking a card you want to play (in this case
Trade Routes), looking at all different aspects of the card, then adding cards that support these concept. Examples are
Barrin, Tolarian Archmage and
Tameshi, Reality Architect, both of which draw cards when you return a land with Trade Routes, or
Faith of the Devoted Bone Miserand
Drake Haven which trigger on discard. Then you start finding links between these cards, adding
Harmonic Prodigy to double those wizard triggers and
Idyllic Tutor to find those enchantments. Iterate on this process, add in some interactive cards and voilà, you have a cube.