The Castle of Thana

Indestructible, Sanctuary(For each creature that
you control, this card gives a +1/+1 and a shield
counter to each creature that you control)
If you have 4 or more human knights under
your control, this card gains hexproof.
When this card enters the battlefield, search
your deck for a card with a subtype with
"human" in it. Also search your deck for
a card named "The Castle Golem" and put
it in your hand. This card cannot be countered.