Kamigawa Cube by: timfreilly.

Source: https://cubecobra.com/cube/overview/kamigawablock

Cube focus:

A "best of block" cube, sampling all the best cards from Kamigawa, within a budget (prices have doubled since then...). Roughly half the creatures are spirits, and there are other tribal synergies.

Some cool decks to try:

Splice deck (sometimes with Dampen Thought!)
WR Legendary Samurai
RB Ogre/Demon w/O-Naginata
Soulshift
UR Zubera
5-Color Hondens
Mono-G Snakes
WU Tallowisp Pacifisms

Card breakdown:

243 Commons (9 cards per pack)
108 Uncommons (4 cards per pack)
54 Rares (2 cards per pack)