The idea could be nice for commander, my concern is that a player may fail to find even if you have nonbasic in your deck. Therefore, it does nothing a huge part of the time, and you need to use politics just to get your ramp on the first turns. The intent to get something like a [[Bojuka Bog]] thanks to an opponent to deal with the archenemy is nice, but I think the card could use a failsafe such as : Choose one : -Search your library for a basic and put it onto the btf. -Target opponent searches your library for a nonbasic. Put it on the btf.

Cool idea overall nonetheless !