Smoldering Bonfire

All red and black creatures have a -1/-1 counter
placed on them and become unblockable. All
dual lands produce one extra mana of their respective type.
Urza was lost in his thoughts as he gazed into the
smoldering flames. He pondered his existence.
A familiar voice called out from the fire.
"Brother, I will come for you again. I swear
upon our mothers soul I shall have my day of reclamation!"