Rihanna, Veil of Amonkhet

Whenever you discard a card, you may pay 2 life.
If you do, create a +0/+1 black Zombie Cat
creature token.
Whenever you activate a planeswalker ability, if it
would cause it to lose loyalty, you may sacrifice
any number of Cat creatures you control. If you
do, it loses 1 less loyalty for each creature
sacrificed this way.
"Meow!"