Opportunity

Frantic Search

Draw two cards, then discard two cards. Untap up to three lands.

Island

Thran War Machine

Echo {4} (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)
This creature attacks each combat if able.

Exhaustion

Creatures and lands target opponent controls don't untap during their next untap step.

Thornwind Faeries

Flying
{T}: This creature deals 1 damage to any target.

Walking Sponge

{T}: Target creature loses your choice of flying, first strike, or trample until end of turn.

Slippery Karst

This land enters tapped.
{T}: Add {G}.
Cycling {2} ({2}, Discard this card: Draw a card.)

Treetop Village

This land enters tapped.
{T}: Add {G}.
{1}{G}: This land becomes a 3/3 green Ape creature with trample until end of turn. It's still a land. (It can deal excess combat damage to the player or planeswalker it's attacking.)

Remote Isle

This land enters tapped.
{T}: Add {U}.
Cycling {2} ({2}, Discard this card: Draw a card.)

Intervene

Counter target spell that targets a creature.

Simian Grunts

Flash
Echo {2}{G} (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)

Rewind

Counter target spell. Untap up to four lands.

Confiscate

Enchant permanent
You control enchanted permanent.

Miscalculation

Counter target spell unless its controller pays {2}.
Cycling {2} ({2}, Discard this card: Draw a card.)

Anthroplasm

This creature enters with two +1/+1 counters on it.
{X}, {T}: Remove all +1/+1 counters from this creature and put X +1/+1 counters on it.

Weatherseed Faeries

Darkwatch Elves

Protection from black
Cycling {2} ({2}, Discard this card: Draw a card.)

Archivist

Bloated Toad

Protection from blue
Cycling {2} ({2}, Discard this card: Draw a card.)

Faerie Conclave

This land enters tapped.
{T}: Add {U}.
{1}{U}: This land becomes a 2/1 blue Faerie creature with flying until end of turn. It's still a land.

Acridian

Echo {1}{G} (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)

Forest

Zephid's Embrace

Enchant creature
Enchanted creature gets +2/+2 and has flying and shroud. (It can't be the target of spells or abilities.)

Hush

Destroy all enchantments.
Cycling {2} ({2}, Discard this card: Draw a card.)

Snap

Return target creature to its owner's hand. Untap up to two lands.

Peregrine Drake

Flying
When this creature enters, untap up to five lands.

Cloud of Faeries

Flying
When this creature enters, untap up to two lands.
Cycling {2} ({2}, Discard this card: Draw a card.)