I most certainly read through your post and looked right over your Nylea comment, I just paid attention to the Topic name, that's my bad.
If you have infinite mana, you can put an infinitely large Ulvenwald Tracker into play (using Nylea to pump him) if you attach Thornbite Staff to him, you can kill every creature on the board assuming they don't have indestructible, shroud, hexproof or larger creatures
I most certainly read through your post and looked right over your Nylea comment, I just paid attention to the Topic name, that's my bad.
If you have infinite mana, you can put an infinitely large Ulvenwald Tracker into play (using Nylea to pump him) if you attach Thornbite Staff to him, you can kill every creature on the board assuming they don't have indestructible, shroud, hexproof or larger creatures
Trying to think outside of the box a bit.