Moonlight Sonata

Exile Moonlight Sonata.
You get an emblem with: "At the beginning of
your end step, exile all enchantments controlled
by your opponents" and "Your opponents can't
cast enchantment spells." You untap up to six
non-basic lands.
"After the first Blood Moon, we realized we needed
an answer to the pyromancers' magic.... Thankfully,
we found it. -- The Elder Scrolls, Chapter XI"