Going back a bit to alternative win conditions, Replenishing Opalescence+Pandemonium (with a few other enchantments being returned) is harder to hate (such as with Needle) than Saproling Burst.
Replenishing 2 Pandemoniums and an Opalescence is 18 damage, which is often lethal. Add an Oath or anything else and you have guaranteed lethal.
Going this route means you'll want more Pandemoniums, but also opens up the option of the Enchanted Evening/Opalescence lock and Decree of Silence.
I'm not sure how much of an improvement it would be, since you are dropping the Bursts but adding more enchantments than you are removing.
Figured I'd throw it out there.



