choice of shrine

on your end step, each opponent chooses left or
right, then you flip a coin. if you got heads,
search your deck for X caves to the shrine and
put it on the battlefield tapped, then shuffle
your library afterward where X is the number of
people that chose left. if you got tails, search your
deck for X caves to the shrine and put it on the
battlefield tapped where X is the number of
opponents who said right.
if you control 10 caves to the shrine, transform
this enchantment.