Amaran, Prismatic Shelter

Amaran, Prismatic Shelter can be your
commander.
Land creatures you control have ward {1}.
{t}, {w}{u}{b}{r}{g}: Search your library for a
land card and put it onto the battlefield tapped. Shuffle your library.
{2}{w}{u}{b}{r}{g}: Until end of turn, Amaran,
Prismatic Shelter becomes a 5/8 Elemental
Avatar creature with vigilance and reach. It's still
a land.