When Rapid-Change Glitch enters the battlefield, exile half of your library, rounded down.
At the beginning of each upkeep, Rapid-Change Glitch becomes a copy of random creature card exiled by Rapid-Change Glitch until end of turn .
The first instant or sorcery spell you cast each turn becomes a copy of a random instant or sorcery exiled by Rapid-Change Glitch.
When Rapid-Change Glitch leaves the battlefield, put all cards exiled by Rapid-Change Glitch on the bottom of their owner's libraries in a random order.
