Yixlid Jailer

If a spell or ability allows you to cast a spell from your graveyard, the first step in doing so is to move it to the stack. That spell's additional and alternative costs may be applied. However, if a card's own ability allows you to cast it from your graveyard (such as a flashback ability) Yixlid Jailer stops that ability.

If a card with changeling is in a graveyard, it still has all creature types.

If a card in a graveyard has an ability that defines a * in its power or toughness, that * is 0. For example, Tarmogoyf is a 0/1 creature card in your graveyard while you control Yixlid Jailer.