Rin, Auspicious Scholar

When Rin, Auspicious Scholar enters the battlefield, create a legendary 1/1 white Cat
creature token with skulk named Weiss. It has
"When this creature deals damage, fateseal 1."
{b}, {t}: Exile the top card of target opponent's
library.
You may cast nonland cards exiled with Rin, Auspicious Scholar without paying their mana
costs. If you do, you lose life equal to that card's converted mana cost.