Arminius, the Liberator

When Arminius, the Liberator enters the battlefield, destroy all enchantments. For each enchantment destroyed this way, you gain 3 life.
Lasting legacy — When this creature is put into your graveyard from the battlefield, you may exile it. If you do, you get an emblem with "Whenever an enchantment is put into a graveyard from the battlefield, you gain 3 life."