Blaidd, the Half-Wolf

When Blaidd, the Half-Wolf attacks, look at
the top 3 cards of your library. You may
reveal a Land Card from among them and
put it into the battlefield tapped, then put
the rest in the bottom of your library in a
random order.
If you control 7 or more lands, Blaidd,
the Half-Wolf has +3/+3, Trample and Vigilance.