Concordant Crossroads

Prevent all combat damage that would be dealt this turn.

Giant Growth

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

Wild Growth

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

Rust

Counter target activated ability from an artifact source. (Mana abilities can't be targeted.)

Wall of Wood

Pendelhaven

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

Subdue

Prevent all combat damage that would be dealt by target creature this turn. That creature gets +0/+X until end of turn, where X is its mana value.

War Mammoth

Forest

Black Lotus

{T}, Sacrifice this artifact: Add three mana of any one color.

Llanowar Elves

Singing Tree

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

Whirling Dervish

Protection from black
At the beginning of each end step, if this creature dealt damage to an opponent this turn, put a +1/+1 counter on it.

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.

Wall of Ice

Darksteel Colossus

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)
Indestructible (Damage and effects that say "destroy" don't destroy this creature.)
If Darksteel Colossus would be put into a graveyard from anywhere, reveal Darksteel Colossus and shuffle it into its owner's library instead.

Untamed Wilds

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

Emerald Dragonfly

Flying
{G}{G}: This creature gains first strike until end of turn.

Giant Turtle

This creature can't attack if it attacked during your last turn.

Avoid Fate

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