Fireball

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.

Immolation

Enchant creature
Enchanted creature gets +2/-2.

Barbary Apes

Drudge Skeletons

{B}: Regenerate Drudge Skeletons. (The next time this creature would be destroyed this turn, it isn't. Instead tap it, remove all damage from it, and remove it from combat.)

Dark Ritual

Will-o'-the-Wisp

Flying (This creature can't be blocked except by creatures with flying or reach.)
{B}: Regenerate Will-o'-the-Wisp. (The next time this creature would be destroyed this turn, it isn't. Instead tap it, remove all damage from it, and remove it from combat.)

Terror

Destroy target nonartifact, nonblack creature. It can't be regenerated.

Yotian Soldier

Lightning Bolt

Lightning Bolt deals 3 damage to any target.

Life Matrix

{4}, {T}: Put a matrix counter on target creature and that creature gains "Remove a matrix counter from this creature: Regenerate this creature." Activate only during your upkeep.

Forest

Mox Emerald

Emerald Dragonfly

Flying
{G}{G}: Emerald Dragonfly gains first strike until end of turn.

Howl from Beyond

Target creature gets +X/+0 until end of turn.

Shatter

Elvish Archers

Berserk

Cast this spell only before the combat damage step.
Target creature gains trample and gets +X/+0 until end of turn, where X is its power. At the beginning of the next end step, destroy that creature if it attacked this turn.

Pendelhaven

{T}: Add {G}.
{T}: Target 1/1 creature gets +1/+2 until end of turn.

Craw Giant

Trample
Rampage 2 (Whenever this creature becomes blocked, it gets +2/+2 until end of turn for each creature blocking it beyond the first.)

Taiga

Hell Swarm

All creatures get -1/-0 until end of turn.

Darkness

Prevent all combat damage that would be dealt this turn.

Mountain

Birds of Paradise

Killer Bees

Flying
{G}: Killer Bees gets +1/+1 until end of turn.

Giant Growth

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

Mana Flare

Whenever a player taps a land for mana, that player adds one mana of any type that land produced.

Crimson Kobolds

Scryb Sprites

Rod of Ruin

{3}, {T}: Rod of Ruin deals 1 damage to any target.

Walking Dead

Artifact Blast

Pixie Queen

Flying
{G}{G}{G}, {T}: Target creature gains flying until end of turn.

Badlands

Swamp

Carrion Ants

{1}: Carrion Ants gets +1/+1 until end of turn.

Mishra's Workshop

{T}: Add {C}{C}{C}. Spend this mana only to cast artifact spells.

Kobolds of Kher Keep

Sol Ring

Avoid Fate

Counter target instant or Aura spell that targets a permanent you control.

Fork

Copy target instant or sorcery spell, except that the copy is red. You may choose new targets for the copy.

Mox Jet

Concordant Crossroads

Wild Growth

Enchant land
Whenever enchanted land is tapped for mana, its controller adds an additional {G}.

Howling Mine

At the beginning of each player's draw step, if Howling Mine is untapped, that player draws an additional card.

Ley Druid

Untamed Wilds

Search your library for a basic land card, put that card onto the battlefield, then shuffle.

Black Lotus

{T}, Sacrifice Black Lotus: Add three mana of any one color.

Red Mana Battery

{2}, {T}: Put a charge counter on Red Mana Battery.
{T}, Remove any number of charge counters from Red Mana Battery: Add {R}, then add an additional {R} for each charge counter removed this way.

Disintegrate

Disintegrate deals X damage to any target. If it's a creature, it can't be regenerated this turn, and if it would die this turn, exile it instead.

Black Mana Battery

{2}, {T}: Put a charge counter on Black Mana Battery.
{T}, Remove any number of charge counters from Black Mana Battery: Add {B}, then add an additional {B} for each charge counter removed this way.

Mox Ruby

Jalum Tome

{2}, {T}: Draw a card, then discard a card.

Blood Lust

If target creature has toughness 5 or greater, it gets +4/-4 until end of turn. Otherwise, it gets +4/-X until end of turn, where X is its toughness minus 1.

Fire Sprites

Green Mana Battery

{2}, {T}: Put a charge counter on Green Mana Battery.
{T}, Remove any number of charge counters from Green Mana Battery: Add {G}, then add an additional {G} for each charge counter removed this way.

Bartel Runeaxe

Vigilance
Bartel Runeaxe can't be the target of Aura spells.

Underworld Dreams

Whenever an opponent draws a card, Underworld Dreams deals 1 damage to that player.

Kobold Drill Sergeant

Other Kobold creatures you control get +0/+1 and have trample.

Ichneumon Druid

Whenever an opponent casts an instant spell other than the first instant spell that player casts each turn, Ichneumon Druid deals 4 damage to that player.

Crookshank Kobolds

Llanowar Elves

Bayou

Basalt Monolith

Basalt Monolith doesn't untap during your untap step.
{T}: Add {C}{C}{C}.
{3}: Untap Basalt Monolith.

Storm Seeker

Storm Seeker deals damage to target player equal to the number of cards in that player's hand.

Crumble

Destroy target artifact. It can't be regenerated. That artifact's controller gains life equal to its mana value.