What mechanic best represented having access to only white, blue, and black, lacking red and green
At the same time, more experienced players can appreciate the thoughtful design and use these decks as a foundation to create something more advanced
This is a contributing factor to the identity crisis these board game versions of MtG
If you really think about it, there have been cards of every type that have been too good, overpowered, and unhealthy like Skullclamp for equipment, Jace, the Mind Sculptor for planeswalkers, Yawgmoth's Will for sorceries, and so forth, but Wizards wisely realized that you don't just give up on equipment altogether because they messed up with Skullclamp or planeswalkers because they had to ban Jace, the Mind Sculptor in Standard
Untapped Flip Lands Turntimber Symbiosis Look at the top seven cards of your library