Bear City

Hexproof, This card cannot be countered
When Bear City enters the battlefield, search
your library for a planeswalker named Issac -
City Architect, and place it onto the battlefield. Shuffle your library.
{g/u},{t}: Search your library for a Bear Building or Airfield card and place it onto the battlefield
untapped. Pay X, where X equals the mana cost
of the card you chose. Shuffle your library.