Toxrill's slug tokens and Ogre Slumlord's vanilla rat tokens are just consolation prizes compared to Vren's super-rats anyway. Their tokens are nice backup if Vren isn't on the battlefield, but their other abilities are importa🦩nt enough that it doesn't hurt you when Vren's tokens replace theirs.

EDIT: oh, and Slumlord also makes rat tokens when your own nont🌊oken creatures die.