Marmalatha, Ghost of the Meow

Triumvirate with Ginger Rex, the Apex and Selene, of the Wild Heart.
Whenever another Cat enters the battlefield, you
may create X 1/1 Blue Cat Spirit creature tokens where X is its power.
{1}{t} Add{u}{u} to your mana pool. When you cast a Cat spell with this mana, create 2 1/1 Blue Cat Spirit creature tokens.