Decree of Silence
{6}{U}{U}
Enchantment
Whenever an opponent casts a spell, counter that spell and put a depletion counter on ~this~. If there are three or more depletion counters on ~this~, sacrifice it.
Cycling {4}{U}{U} ({4}{U}{U}, Discard ~this~: Draw a card.)
When you cycle ~this~, you may counter target spell.