Stronghold

{T}: Target land becomes an Island until end of turn.

As long as the top card of your graveyard is a creature card, Volrath's Shapeshifter has the full text of that card and has the text "{2}: Discard ...

Walking Dream can't be blocked. Walking Dream doesn't untap during your untap step if an opponent controls two or more creatures.

Defender (This creature can't attack.) Whenever Wall of Tears blocks a creature, return that creature to its owner's hand at end of combat.