Put a +1/+1 counter on target creature you control if it's legendary. Then it fights target creature an opponent controls. (Each deals damage equal to its power to the other.)
{2}
Arcane Signet
Artifact
{T}: Add one mana of any color in your commander's color identity.
{2}{G}
Beast Within
Instant
Destroy target permanent. Its controller creates a 3/3 green Beast creature token.
{4}{R}
Burning Anger
Enchantment - Aura
Enchant creature
Enchanted creature has "{T}: This creature deals damage equal to its power to any target."
{1}{B}
Cast Down
Instant
Destroy target nonlegendary creature.
{1}{B}
Corpse Churn
Instant
Mill three cards, then you may return a creature card from your graveyard to your hand. (To mill a card, put the top card of your library into your graveyard.)
{2}{B}{G}
Culling Ritual
Sorcery
Destroy each nonland permanent with mana value 2 or less. Add {B} or {G} for each permanent destroyed this way.
{2}{G}
Cultivate
Sorcery
Search your library for up to two basic land cards, reveal those cards, put one onto the battlefield tapped and the other into your hand, then shuffle.
{5}{G}
Death's Presence
Enchantment
Whenever a creature you control dies, put X +1/+1 counters on target creature you control, where X is the power of the creature that died.
{1}{G}{G}
Eternal Witness
Creature - Human Shaman
When Eternal Witness enters the battlefield, you may return target card from your graveyard to your hand.
2 /
1
--
Exotic Orchard
Land
{T}: Add one mana of any color that a land an opponent controls could produce.
{2}{G}
Farhaven Elf
Creature - Elf Druid
When Farhaven Elf enters the battlefield, you may search your library for a basic land card, put it onto the battlefield tapped, then shuffle.
1 /
1
{2}{B}
Fleshbag Marauder
Creature - Zombie Warrior
When Fleshbag Marauder enters the battlefield, each player sacrifices a creature.
3 /
1
{G}
Fyndhorn Elves
Creature - Elf Druid
{T}: Add {G}.
1 /
1
{2}{G}{G}{G}
Garruk, Primal Hunter
Legendary Planeswalker - Garruk
+1: Create a 3/3 green Beast creature token.
-3: Draw cards equal to the greatest power among creatures you control.
-6: Create a 6/6 green Wurm creature token for each land you control.
L:
3
{B}{B}{G}{G}
Jarad, Golgari Lich Lord
Legendary Creature - Zombie Elf
Jarad, Golgari Lich Lord gets +1/+1 for each creature card in your graveyard.
{1}{B}{G}, Sacrifice another creature: Each opponent loses life equal to the sacrificed creature's power.
Sacrifice a Swamp and a Forest: Return Jarad from your graveyard to your hand.
2 /
2
{2}{G}
Kodama's Reach
Sorcery - Arcane
Search your library for up to two basic land cards, reveal those cards, put one onto the battlefield tapped and the other into your hand, then shuffle.
{3}{B}{G}
Moldervine Reclamation
Enchantment
Whenever a creature you control dies, you gain 1 life and draw a card.
{6}{B}
Necrotic Hex
Sorcery
Each player sacrifices six creatures. You create six tapped 2/2 black Zombie creature tokens.
{2}{B}
Plaguecrafter
Creature - Human Shaman
When Plaguecrafter enters the battlefield, each player sacrifices a creature or planeswalker. Each player who can't discards a card.
3 /
2
{1}{B}{G}
Putrefy
Instant
Destroy target artifact or creature. It can't be regenerated.
{4}{G}{G}
Rampaging Baloths
Creature - Beast
Trample
Landfall -- Whenever a land enters the battlefield under your control, you may create a 4/4 green Beast creature token.
6 /
6
{1}{G}
Rampant Growth
Sorcery
Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.
{2}{G}
Reclamation Sage
Creature - Elf Shaman
When Reclamation Sage enters the battlefield, you may destroy target artifact or enchantment.
2 /
1
{2}{G}
Retreat to Kazandu
Enchantment
Landfall -- Whenever a land enters the battlefield under your control, choose one --
• Put a +1/+1 counter on target creature.
• You gain 2 life.
{1}
Sol Ring
Artifact
{T}: Add {C}{C}.
{2}{R}
Soul's Fire
Instant
Target creature you control deals damage equal to its power to any target.
{4}{G}
Soul's Might
Sorcery
Put X +1/+1 counters on target creature, where X is that creature's power.
{B}
Spark Harvest
Sorcery
As an additional cost to cast this spell, sacrifice a creature or pay {3}{B}.
Destroy target creature or planeswalker.
{2}
Swiftfoot Boots
Artifact - Equipment
Equipped creature has hexproof and haste. (It can't be the target of spells or abilities your opponents control.)
Equip {1}
{1}{G}
Three Visits
Sorcery
Search your library for a Forest card, put it onto the battlefield, then shuffle.
{1}{R}
Thrill of Possibility
Instant
As an additional cost to cast this spell, discard a card.
Draw two cards.
{B}
Vampiric Tutor
Instant
Search your library for a card, then shuffle and put that card on top. You lose 2 life.
{2}{B}
Victimize
Sorcery
Choose two target creature cards in your graveyard. Sacrifice a creature. If you do, return the chosen cards to the battlefield tapped.
{B}
Village Rites
Instant
As an additional cost to cast this spell, sacrifice a creature.
Draw two cards.
{B}
Viscera Seer
Creature - Vampire Wizard
Sacrifice a creature: Scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)
1 /
1
{1}{G}{G}
Yavimaya Elder
Creature - Human Druid
When Yavimaya Elder dies, you may search your library for up to two basic land cards, reveal them, put them into your hand, then shuffle.