While there isnt an overabundance of cards that call out cats specifically, you can also supplement your deck with any generic typal support cards like Banner of Kinship
A card's spectacle cost is the same no matter how much life your opponents lost or how many opponents lost life
I think they're fantastic and have a lot of useful utility
It's not a card you want to play on turn 3, but come turn 5-6, it has the ability to be a game changer, whether you're flashing back an important early game spell, or using the Harmonize ability to cast an expensive spell at a reduced rate
Convoking a huge seven mana spell with a horde of tokens that will then get to safely untap and swing into still-rebuilding boards
InBloomburrow, the Valley is threatened by elemental forces raging out of control, and salvation falls on the shoulders of its smallest protectors