To make a deck like this work, you need a way to deal damage to your own creatures when you want (Walking Ballista, Pyrohemia, Lightmine Field, Staff Of Nin, or even Prodigal Pyromancer cards), you need creatures that will trigger for being dealt damage, and you need a way to control the incoming damage so you arent losing creatures you dont want to (such as to a Skullcrack or similar effect, or an early Star Of Destruction)
This might be a sign to run a couple more big spells
4 Zirda, The Dawnwalker Discounted Cycling Zirda, the Dawnwalker is a solid companion (that's even banned in Legacy), but makes for a fantastic cycling commander
We also add five new ally-color* decks and ten new enemy-color* options
it's because Lorwyn Eclipsed, the first set in 2026's MTG release schedule, has a -1/-1 counter theme