Unless there is another effect increasing its toughness, it will be put into its owner's graveyard as a state-based action
Despite this potential problem, its highly likely that boxes will keep moving hands as optimistic investors buy in
The deck basically plays one Plague Rat per turn for the first four or five turns, and then plays another nearly every other turn for the rest of the game
Foil Equinox, foil Borderless, both are possible, but NOT the Commander-only cards and not the Extended Art versions of cards
Even attached to a weak body, this is a great combo piece that can do silly things, especially if you can give it haste
So you can play Basilica Screecher in your Judith deck, because its black and not white