Yellow Mushroom Cookie

Eating the cookie will grant the creature resistance
to all damage for 1 minute.
Poisoned. Immediately when consumed, the crea-
ture takes 3d6 poison damage and is poisoned. As
long as it is poisoned in this way, it takes another
3d6 poison at the end of its next turn and each of
its turns thereafter. At the start of its turn, it can
make a DC13 Constitution saving throw, reduc-
ing this damage by 1d6. After 3 successful saves,
the creature is no longer poisoned in this way.