Chains of Mephistopheles Okay, say that all again, but slower
Plus, these cards are either uninspired individually or they already have some special versions out there
If all that sounds too niche, remember you can play Metamorphic Alteration on opposing creatures to make them worse, copying a 1/1 token or whatever else is lying around
However, our Jackal Warrior (why not a Pilot as well?) is great at giving your whole team the trampling love as well, and it works strongly with most creatures that are printed
Avenger of Zendikar creates 0/1 Plant tokens for each land you control, and can power them up with further land drops
Assuming youve got a bunch of nontoken creatures, rat or otherwise, hell consistently create 1/1 rat creature tokens