You can't foresee everything. You can get involved in an incredibly difficult battle with an entire guild of assassins and emerge victorious, but it is impossible to predict the appearance of a random portal right under your feet. A portal that will drag you into worlds that even the strongest magicians mention in whispers. To worlds called dead. After all, even ordinary magic works there completely differently than in all other worlds. But you can get out of there too. But for this you will have to try very hard. And do even more than might seem at first glance.