Basking Rootwalla

{1}{G}: This creature gets +2/+2 until end of turn. Activate only once each turn.
Madness {0} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Ravaged Highlands

This land enters tapped.
{T}: Add {R}.
{T}, Sacrifice this land: Add one mana of any color.

Krosan Archer

Reach (This creature can block creatures with flying.)
{G}, Discard a card: This creature gets +0/+2 until end of turn.

Rites of Spring

Discard any number of cards. Search your library for up to that many basic land cards, reveal them, put them into your hand, then shuffle.

Genesis

At the beginning of your upkeep, if this creature is in your graveyard, you may pay {2}{G}. If you do, return target creature card from your graveyard to your hand.

Junk Golem

This creature enters with three +1/+1 counters on it.
At the beginning of your upkeep, sacrifice this creature unless you remove a +1/+1 counter from it.
{1}, Discard a card: Put a +1/+1 counter on this creature.

Arrogant Wurm

Trample
Madness {2}{G} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Gurzigost

At the beginning of your upkeep, sacrifice this creature unless you put two cards from your graveyard on the bottom of your library.
{G}{G}, Discard a card: You may have this creature assign its combat damage this turn as though it weren't blocked.

Centaur Garden

{T}: Add {G}. This land deals 1 damage to you.
Threshold — {G}, {T}, Sacrifice this land: Target creature gets +3/+3 until end of turn. Activate only if seven or more cards are in your graveyard.

Spellbane Centaur

Creatures you control can't be the targets of blue spells or abilities from blue sources.

Mossfire Valley

Anger

Haste
As long as this card is in your graveyard and you control a Mountain, creatures you control have haste.

Muscle Burst

Target creature gets +X/+X until end of turn, where X is 3 plus the number of cards named Muscle Burst in all graveyards.

Timberland Ruins

This land enters tapped.
{T}: Add {G}.
{T}, Sacrifice this land: Add one mana of any color.

Browbeat

Any player may have Browbeat deal 5 damage to them. If no one does, target player draws three cards.

Mountain

Fiery Temper

Fiery Temper deals 3 damage to any target.
Madness {R} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Minotaur Explorer

When this creature enters, sacrifice it unless you discard a card at random.

Barbarian Ring

{T}: Add {R}. This land deals 1 damage to you.
Threshold — {R}, {T}, Sacrifice this land: It deals 2 damage to any target. Activate only if seven or more cards are in your graveyard.

Forest

Sonic Seizure

As an additional cost to cast this spell, discard a card at random.
Sonic Seizure deals 3 damage to any target.

Violent Eruption

Violent Eruption deals 4 damage divided as you choose among any number of targets.
Madness {1}{R}{R} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Wild Mongrel

Discard a card: This creature gets +1/+1 and becomes the color of your choice until end of turn.

Brawn

Trample
As long as this card is in your graveyard and you control a Forest, creatures you control have trample.

Patchwork Gnomes

Discard a card: Regenerate this creature. (The next time this creature would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)

Crashing Centaur

{G}, Discard a card: This creature gains trample until end of turn.
Threshold — As long as seven or more cards are in your graveyard, this creature gets +2/+2 and has shroud. (It can't be the target of spells or abilities.)