Watery Grave [Guilds of Ravnica Promos]Set: Guilds of Ravnica Promos Type: Land Island Swamp Rarity: Rare ({T}: Add {U} or {B}.) As Watery Grave enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped. Few believe Duskmantle exists. Fewer find it. None live to bear witness.

Skilled and agile

Set: Mystery Booster Type: Creature — Avatar Rarity: Rare Cost: {6}{B} Flying

Silver Golem blocks or becomes blocked

Set: Antiquities Type: Creature — Treefolk Rarity: Rare Cost: {1}{G}{G} Gaea's Avenger's power and toughness are each equal to 1 plus the number of artifacts your opponents control

you must stay calm

Forecast — {1}{W}

sacrifice Season of the Witch unless you pay 2 life

Set: Unlimited Edition Type: Artifact Rarity: Rare Cost: {2} Whenever a land enters the battlefield

target player loses 3 life

When God-Eternal Rhonas dies or is put into exile from the battlefield

or combat phase

Set: Stronghold Type: Enchantment Rarity: Rare Cost: {3}{U}{U} Rather than pay the mana cost for a spell