Giant Turtle

You may look at the top card of your library
any time.
As long as Giant Turtle is attached to a creature,
you may play lands and cast spells from the top
of your library.
Reconfigure {2}{u} ({2}{u}: Attach to target creature
you control; or unattach from a creature. Reconfigure
only as a sorcery. While attached, this isn't a creature.)
The open seas of Great Bay have need of your might. Quickly. Climb onto my back.