To put it into perspective, there are 118 unique cards that reference "power four or greater," 10 that reference power six, and 16 that reference power eight
So, while it can be fun to ruminate on the merits or drawbacks of every possible inclusion, it's never worth stressing about
96-120 lands is the most you can include at 360 before players start ending up short on playable, non-land cards. As the above table shows, the average number of unplayable cards per deck actually doesnt appear to change much based on the amount of fixing in the cube it basically hovers around 7 or 8
Because that can entirely mess this plan up
This card also comes with two abilities, Clever Swap and Fresh Start
The cost reduction can apply to alternative costs such as flashback costs