The Hydra, Zoologic Station

When this artifact enters, create a 2/2 white Bear creature token with Forestwalk.

Fortify {3} ( {3}: Attach to target land you control. Fortify only as a sorcery.)
When this artifact becomes fortified, exile up to one target creature until this artifact leaves
the battlefield. This ability can't be countered.

Fortified land has "{t}: Add two mana of any one color."