Lifeblood [Legends]Set: Legends Type: Enchantment Rarity: Rare Cost: {2}{W}{W} Whenever a Mountain an opponent controls becomes tapped, you gain 1 life. "Foolish wizard! As you tap the power of your lofty keep, so grows my strength." Malvern Xelionos, *Letters*

A power vacuum for the Azorius

you get {E}{E} (two energy counters)

Set: From the Vault: Realms Type: Land Rarity: Mythic {T}: Untap target attacking creature

Set: Classic Sixth Edition Type: Creature — Bird Rarity: Rare Cost: {G} Flying

It's still a land

Set: Friday Night Magic 2010 Type: Creature — Elf Shaman Rarity: Rare Cost: {1}{G} When Elvish Visionary enters the battlefield

except the token isn't legendary if equipped creature is legendary

Whenever Skysovereign

Gabriel Angelfire gains that ability until your next upkeep

Set: Tenth Edition Type: Creature — Goblin Rarity: Rare Cost: {1}{R}{R} Other Goblins get +1/+1 and have mountainwalk

If the player can't

As long as Filth is in your graveyard and you control a Swamp