Felidar Sovereign is a better card for this job because it does something else as a 4/6 with vigilance and it requires less life for you to win, but if youre seeking consistency, maybe give this one a try
Feel free to cut these if you dont have them
Maybe the answer is to slap a Rune-Scarred Demon or some other demon into the same list so you always have something to find
The Great Aerie Fun: 2 Impact: 2 Chaos: 2 Pumping up your smaller creatures can certainly be useful, but theres enough spot removal, blockers, board wipes, bounce and situations where having a slightly bigger creature just doesnt do much that Im not too keen on this one
Essentially, the goal was to cut down the initial list to what would actually be good and/or enjoyable in a four-player game of Commander
The toxic it adds is the main attraction, however, and when combined with all the other Rat support cards, it becomes easy to win through poison counters