10 cards where the cards are dual lands that deal 2 damage to you and the block is “rav”

Blood Crypt (Dissension #171)
Breeding Pool (Dissension #172)
Godless Shrine (Guildpact #157)
Hallowed Fountain (Dissension #174)
Overgrown Tomb (Ravnica: City of Guilds #279)
Sacred Foundry (Ravnica: City of Guilds #280)
Steam Vents (Guildpact #164)
Stomping Ground (Guildpact #165)
Temple Garden (Ravnica: City of Guilds #284)
Watery Grave (Ravnica: City of Guilds #286)

This search is finished. Now the real work can begin.