Your 5k is from its stats boost, which is from GY. Cant be avoided if you search and use its supports. For gimmicky one, never use snake rain, and probably just banish some monsters from your GY. Really, with newer support, she is basically Ultimate Falcon with flak armor, since it'll guaranteed to have more reptilles in GY
It's good to know that Vennominaga is still a cool monster to use and that she hasn't fallen by the wayside, thanks. Day 545 waiting for NOT BROKEN support for Venom.
1:45 - That one opponent I had who also played Ogdoadic - Vennominaga: "I've seen bigger..." (7k ATK) Me with my Kuribohs: "And yet, it still wouldn't save either of you..."