Now imagine her meeting up with either the Grand King, or Titan King Ghidorah......and the two finding commonality in terraforming worlds by killing all life? And it resulted in them uniting against their common enemies? King Ghidorah, and Queen Legion: THAT is something to fear.
I worry that not even Godzilla and Gamera alone could stop this "Deadly Alliance". (Kudos to all who get this reference, obvious as it should be.XD)