U.N. Agreement

Creatures you control get +1/+1.
As long as an opponent controls an enchantment
named U.N. Agreement, creatures that player controls can't attack you.
{2}{w}: Choose an opponent. If that opponent
agrees, that player creates a token copy of U.N. Agreement. Activate this ability only as a sorcery.
{4}: Destroy all enchantments named U.N.
Agreement. Activate this ability only as a sorcery.