Separated by the Storm

When Separated by the Storm etb's, lose half of your life total.
{t}: Add one exploration counter to Separated by the Storm.
{t}: Remove 5 counters from Separated by the Storm, transform it.
If this enters your hand, shuffle it back into the library.
If you have both Ori, Lights Hope and Ku, the Flightless in your deck, this must be in your deck no matter what.