Shrek the onion

When Shrek the onion comes into play, destroy x creatures, tap x permenents, and target player discards {x} cards at random
{t}, tap {x} creatures. destroy Shrek the onion. Gian x life, activate Shrek the onions comes into play ability x times.
{t}, target creature gets a -1/-1 counter, then proliferate. {t}{x}, create x 1/1 shreklings.