Blood Crypt [Dissension]Set: Dissension Type: Land Swamp Mountain Rarity: Rare ({T}: Add {B} or {R}.) As Blood Crypt enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

Set: From the Vault: Relics Type: Artifact Creature — Golem Rarity: Mythic Cost: {8} When Sundering Titan enters the battlefield or leaves the battlefield

Whenever a creature an opponent controls dies

Then he saw the battlefield

Whenever a Mountain enters the battlefield under your control

Set: Zendikar Type: Legendary Planeswalker — Nissa Rarity: Mythic Cost: {2}{G}{G} +1: Search your library for a card named Nissa's Chosen and put it onto the battlefield

Set: Commander 2011 Type: Enchantment Rarity: Rare Cost: {3}{R} Your opponents can't search libraries

Set: Mirrodin Type: Enchantment Rarity: Rare Cost: {2}{B} At the beginning of each player's upkeep

if Howling Mine is untapped

evinced in solid and shade

Set: Duel Decks Anthology Type: Creature — Elf Druid Rarity: Uncommon Cost: {2}{G} When Elvish Harbinger enters the battlefield

As Hallowed Fountain enters the battlefield

or planeswalker