Arcane Signet

{T}: Add one mana of any color in your commander's color identity.

Azorius Signet

Plains

Vega, the Watcher

Flying
Whenever you cast a spell from anywhere other than your hand, draw a card.

Island

Command Tower

Spectral Deluge

Return each creature your opponents control with toughness X or less to its owner's hand, where X is the number of Islands you control.
Foretell {1}{U}{U} (During your turn, you may pay {2} and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)