Because a lot of cats have lifegain abilities or payoffs, other lifegain cards synergize well with cats
Like morph, the disguise mechanic from Murders at Karlov Manor allows some creatures to be played disguised, or as a face-down 2/2 with ward 2
Fast Grass and Electric-types should quickly deal with this team, especially with a well-placed accurate Thunder on Tentacruel and Kingdra during the rain
For a more recent example of Pringling, it looks like the recent Collectors Edition product had some issues
An easy way to enable this is to create token copies of real creatures, either with Kiki-Jiki, Mirror Breaker effects or by giving your creatures myriad with cards like Blade of Selves
Alternatively, they can bring out a weaker Pokemon that yours can take care of quickly