(As a Siege enters, choose an opponent to protect it. You and others can attack it. When it's defeated, exile it, then cast it transformed.)
When this Siege enters, scry 3, then reveal the top card of your library. If it's a land or double-faced card, draw a card. // Trample, ward
Other transformed permanents you control have trample and ward .

To the slabhorn, the branches of the Invasion Tree were as brittle as the stems of a Pyrulean fern.