Elvish Mystic

Wickerbough Elder

Wickerbough Elder enters with a -1/-1 counter on it.
{G}, Remove a -1/-1 counter from Wickerbough Elder: Destroy target artifact or enchantment.

Conclave Naturalists

When Conclave Naturalists enters, you may destroy target artifact or enchantment.

Liquimetal Coating

{T}: Target permanent becomes an artifact in addition to its other types until end of turn.

Llanowar Elves

Foundation Breaker

When Foundation Breaker enters, you may destroy target artifact or enchantment.
Evoke {1}{G} (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters.)

Wilt

Destroy target artifact or enchantment.
Cycling {2} ({2}, Discard this card: Draw a card.)

Forest

Myr Landshaper

{T}: Target land becomes an artifact in addition to its other types until end of turn.

Lantern of the Lost

When Lantern of the Lost enters, exile target card from a graveyard.
{1}, {T}, Exile Lantern of the Lost: Exile all cards from all graveyards, then draw a card.

Viridian Shaman

When Viridian Shaman enters, destroy target artifact.

Harmonize

Liquimetal Torque

{T}: Add {C}.
{T}: Target nonland permanent becomes an artifact in addition to its other types until end of turn.