Spend only black mana on X.

Drain Life deals X damage to any target. You gain life equal to the damage dealt, but not more life than the player’s life total before the damage was dealt, the planeswalker’s loyalty before the damage was dealt, or the creature’s toughness.

Dwarven Ruins enters the battlefield tapped.

{T}: Add {R}.

{T}, Sacrifice Dwarven Ruins: Add {R}{R}.

Ebon Stronghold enters the battlefield tapped.

{T}: Add {B}.

{T}, Sacrifice Ebon Stronghold: Add {B}{B}.

At the beginning of your upkeep, target non-Wall creature an opponent controls gains forestwalk until your next upkeep. (It can’t be blocked as long as defending player controls a Forest.)

Flying

Sacrifice a creature: Fallen Angel gets +2/+1 until end of turn.

Flying

This spell costs {1} more to cast for each target beyond the first.

Fireball deals X damage divided evenly, rounded down, among any number of targets.

Prevent all combat damage that would be dealt this turn.

Flying (This creature can’t be blocked except by creatures with flying or reach.)

When Fog Elemental attacks or blocks, sacrifice it at end of combat.

Trample (This creature can deal excess combat damage to the player or planeswalker it’s attacking.)

At the beginning of your upkeep, Force of Nature deals 8 damage to you unless you pay {G}{G}{G}{G}.

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

Enchant creature

Prevent all combat damage that would be dealt to and dealt by enchanted creature.

{U}: Giant Crab gains shroud until end of turn. (It can’t be the target of spells or abilities.)

Target creature gets +3/+3 until end of turn.

When Gravedigger enters the battlefield, you may return target creature card from your graveyard to your hand.

Havenwood Battleground enters the battlefield tapped.

{T}: Add {G}.

{T}, Sacrifice Havenwood Battleground: Add {G}{G}.

Whenever Hollow Dogs attacks, it gets +2/+0 until end of turn.

Hulking Cyclops can’t block.