Fickle Maelstrom

Whenever a non-token permanent enters the battlefield, flip a coin. if the coin comes up heads, shuffle that permanent into it's owner's library.
if the coin comes up tails, create a token that's
a copy of it.

If your ruminations of the meaning of life have
brought you to any conclusion that does not contain
the words, 'chaos' or 'meaningless', you should think
a little longer. — Vyzx, supplicant of chaos