at the beginning of your upkeep, exile the top four cards of your library, then roll a d20. 1-9 | you may put a land card from among those cards onto the battlefield. 10-19 | create a 2/2 green wolf creature token, then put a +1/+1 counter on it for each creature card among those cards. 20 | put all permanent cards exiled with journey to the lost city onto the battlefield, then sacrifice it.