Memory Erosion [Commander 2011] Token or planeswalker Enchanted permanent is

or planeswalker Enchanted permanent is a colorless land with "{T}: Add {C}" and loses all other card types and abilities

return that card to the battlefield under your control if it's a Samurai card

You may play lands and cast spells from that player's hand this turn

it deals 7 damage to you

Memory Erosion [Commander 2011] Token or planeswalker Enchanted permanent isSet: Commander 2011 Type: Enchantment Rare Cost: {1}{U}{U} Whenever an opponent casts a spell, that player mills two cards. "The Filigree Texts do not compel you to act in accordance with their precepts. They only specify the consequences should you fail." Lodus of the Ethersworn