What are the abilities of Pestilent Cauldron?
user
{T}, Discard a card: Create a 1/1 black and green Pest creature token with "When this creature dies, you gain 1 life."\n{1}, {T}: Each opponent mills cards equal to the amount of life you gained this turn.\n{4}, {T}: Exile four target cards from a single graveyard. Draw a card.
assistant