Cloudstone Curio [Ravnica: City of Guilds] Artifact Creature Whenever you cast a creature

Whenever you cast a creature spell of the chosen type

You get an emblem with "You may cast spells from your hand without paying their mana costs

{T}: Prevent all combat damage that would be dealt by target attacking creature this turn

You may play it this turn

Heretical Healer

Cloudstone Curio [Ravnica: City of Guilds] Artifact Creature Whenever you cast a creatureSet: Ravnica: City of Guilds Type: Artifact Rare Cost: {3} Whenever a nonartifact permanent enters the battlefield under your control, you may return another permanent you control that shares a permanent type with it to its owner's hand. It wants to remain a mystery, banishing the curious in favor of less inquisitive company.