Even if you're not playing a Kindred theme that will just take Radagast out of consideration entirely, you will eventually hit a happenstance of creatures in play that will have you putting creature cards on the bottom, not to mention the likelihood that you'll pull all non-creatures
This top10 was constructed with the help from other people talking about these glitches, and its possible some of them werent retold 100% exactly how they worked (for example, sometimes Im not sure whether two glitches were in the system at the same time)
Ice Age reprints the entire Circle of Protection cycle for White
Discard some huge and expensive monster to the graveyard and then bring it back with Victimize or Unburial Rites
Honestly, I like the system
In Commander, however, where fast mana is absolutely everywhere, this card can be played surprisingly early