Sandstorm

Sandstorm deals 1 damage to each attacking creature.

Livonya Silone

First strike; legendary landwalk (This creature can't be blocked as long as defending player controls a legendary land.)

Reincarnation

Choose target creature. When that creature dies this turn, return a creature card from its owner's graveyard to the battlefield under the control of that creature's owner.

Singing Tree

{T}: Target attacking creature has base power 0 until end of turn.

Urza's Power Plant

{T}: Add {C}. If you control an Urza's Mine and an Urza's Tower, add {C}{C} instead.

Avoid Fate

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

Force of Nature

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}.

Johan

At the beginning of combat on your turn, you may have Johan gain "Johan can't attack" until end of combat. If you do, attacking doesn't cause creatures you control to tap this combat if Johan is untapped.

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.

Mountain

Sylvan Library

At the beginning of your draw step, you may draw two additional cards. If you do, choose two cards in your hand drawn this turn. For each of those cards, pay 4 life or put the card on top of your library.

Hornet Cobra

Mox Emerald

Birds of Paradise

Revelation

Urza's Mine

{T}: Add {C}. If you control an Urza's Power-Plant and an Urza's Tower, add {C}{C} instead.

Wolverine Pack

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

Shanodin Dryads

Forestwalk (This creature can't be blocked as long as defending player controls a Forest.)

Ley Druid

Instill Energy

Enchant creature
Enchanted creature can attack as though it had haste.
{0}: Untap enchanted creature. Activate only during your turn and only once each turn.

Tuknir Deathlock

Flying
{R}{G}, {T}: Target creature gets +2/+2 until end of turn.

Citanul Druid

Whenever an opponent casts an artifact spell, put a +1/+1 counter on Citanul Druid.

Wyluli Wolf

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

Natural Selection

Look at the top three cards of target player's library, then put them back in any order. You may have that player shuffle.

Killer Bees

Flying
{G}: Killer Bees gets +1/+1 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.)

Radjan Spirit

{T}: Target creature loses flying until end of turn.

Urza's Tower

{T}: Add {C}. If you control an Urza's Mine and an Urza's Power-Plant, add {C}{C}{C} instead.

Rock Hydra

Rock Hydra enters with X +1/+1 counters on it.
For each 1 damage that would be dealt to Rock Hydra, if it has a +1/+1 counter on it, remove a +1/+1 counter from it and prevent that 1 damage.
{R}: Prevent the next 1 damage that would be dealt to Rock Hydra this turn.
{R}{R}{R}: Put a +1/+1 counter on Rock Hydra. Activate only during your upkeep.

Orcish Oriflamme

Attacking creatures you control get +1/+0.

Stream of Life

Jacques le Vert

Wall of Opposition

Defender (This creature can't attack.)
{1}: Wall of Opposition gets +1/+0 until end of turn.

Untamed Wilds

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

Desert

{T}: Add {C}.
{T}: Desert deals 1 damage to target attacking creature. Activate only during the end of combat step.

Desert Twister

Giant Growth

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

Sunastian Falconer

Drop of Honey

At the beginning of your upkeep, destroy the creature with the least power. It can't be regenerated. If two or more creatures are tied for least power, you choose one of them.
When there are no creatures on the battlefield, sacrifice Drop of Honey.

Gravity Sphere

North Star

{4}, {T}: For one spell this turn, you may spend mana as though it were mana of any type to pay that spell's mana cost. (Additional costs are still paid normally.)