Thundering Falls [Murders at Karlov Manor Prerelease Promos] BW80 Set: New Awakening Card type:

Set: New Awakening Card type: Tamer Rarity: Uncommon Play Cost: 4 [Start of Your Turn] If you have 2 memory or less

each waiting for an errant footstep to release its noxious spores

and cards in your graveyards

You'll also find a reference card for the Adeptus Mechanicus army rules as well as special datasheet cards for use in Combat Patrol games

It also contains the following rules

Thundering Falls [Murders at Karlov Manor Prerelease Promos] BW80 Set: New Awakening Card type:Set: Murders at Karlov Manor Prerelease Promos Type: Land Island Mountain Rarity: Rare (T: Add U or R.) Thundering Falls enters the battlefield tapped. When Thundering Falls enters the battlefield, surveil 1. (Look at the top card of your library. You may put it into your graveyard.)