Catsunami

Return all creatures to their owners hands. You
create X 1/1 white cat creature tokens. Your
opponents create X 0/1 colorless cat food
creature tokens with "this creature must block
cat creatures. Whenever a cat kills this creature,
that cat gets a +1/+1 counter.". X equals the
number of creatures returned this way.
—
"AAAAAAAAH!!!! IT'S COMING!!!!!!!!"
Lars, street urchin