Vriska Serket, Thief of Light

Flying
{u/r}{b}{b}, {t}: You may roll an eight-sided die eight times, then distribute X -3/-2 counters among
any number of target creatures, where X is the
number of eights that were rolled. Fateseal 2.
Whenever Vriska Serket, Thief of Light dies, if
it was dealt no combat damage this turn, return
it to the battlefield at the beginning of your next upkeep.