Myr Matrix

Indestructible (Effects that say "destroy" don't destroy this artifact.)
Myr creatures get +1/+1.
{5}: Create a 1/1 colorless Myr artifact creature token.

Test of Faith

Prevent the next 3 damage that would be dealt to target creature this turn. For each 1 damage prevented this way, put a +1/+1 counter on that creature.

Tangle Golem

Affinity for Forests (This spell costs {1} less to cast for each Forest you control.)

Plains

Infested Roothold

Defender (This creature can't attack.)
Protection from artifacts
Whenever an opponent casts an artifact spell, you may create a 1/1 green Insect creature token.

Spawning Pit

Sacrifice a creature: Put a charge counter on this artifact.
{1}, Remove two charge counters from this artifact: Create a 2/2 colorless Spawn artifact creature token.

Wirefly Hive

{3}, {T}: Flip a coin. If you win the flip, create a 2/2 colorless Insect artifact creature token with flying named Wirefly. If you lose the flip, destroy all permanents named Wirefly.

Pteron Ghost

Flying
Sacrifice this creature: Regenerate target artifact.

Tangle Spider

Flash (You may cast this spell any time you could cast an instant.)
Reach (This creature can block creatures with flying.)

Arrest

Enchant creature
Enchanted creature can't attack or block, and its activated abilities can't be activated.

Tel-Jilad Archers

Protection from artifacts; reach (This creature can block creatures with flying.)

Echoing Courage

Target creature and all other creatures with the same name as that creature get +2/+2 until end of turn.

Tel-Jilad Outrider

Forest

Purge

Destroy target artifact creature or black creature. It can't be regenerated.

Stir the Pride

Choose one —
• Creatures you control get +2/+2 until end of turn.
• Until end of turn, creatures you control gain "Whenever this creature deals damage, you gain that much life."
Entwine {1}{W} (Choose both if you pay the entwine cost.)

Pulse of the Tangle

Create a 3/3 green Beast creature token. Then if an opponent controls more creatures than you, return Pulse of the Tangle to its owner's hand.

One Dozen Eyes

Choose one —
• Create a 5/5 green Beast creature token.
• Create five 1/1 green Insect creature tokens.
Entwine {G}{G}{G} (Choose both if you pay the entwine cost.)

Gold Myr

Raise the Alarm

Create two 1/1 white Soldier creature tokens.

Viridian Shaman

When this creature enters, destroy target artifact.

Thunderstaff

As long as this artifact is untapped, if a creature would deal combat damage to you, prevent 1 of that damage.
{2}, {T}: Attacking creatures get +1/+0 until end of turn.