Concealed Shellox

Concealed Shellox has hexproof as long as its
untapped.
Whenever Concealed Shellox attacks, you may
return a land or enchantment card from your graveyard to your hand. If you didn't return a
card this way, you may mill 3 cards.

What looks like a moss covered mound in the water,
may actually be a Shellox lazily grazing the bottom
of the swamp.