Cloud Elemental

Flying
Cloud Elemental can block only creatures with flying.

Abyssal Specter

Flying
Whenever Abyssal Specter deals damage to a player, that player discards a card.

Compulsive Research

Target player draws three cards. Then that player discards two cards unless they discard a land card.

Engineered Plague

As Engineered Plague enters the battlefield, choose a creature type.
All creatures of the chosen type get -1/-1.

Thran Quarry

At the beginning of the end step, if you control no creatures, sacrifice Thran Quarry.
: Add one mana of any color.

Recollect

Return target card from your graveyard to your hand.

Fracturing Gust

Destroy all artifacts and enchantments. You gain 2 life for each permanent destroyed this way.

Radiant, Archangel

Flying, vigilance
Radiant, Archangel gets +1/+1 for each other creature with flying on the battlefield.

Shoreline Ranger

Flying
Islandcycling (, Discard this card: Search your library for an Island card, reveal it, put it into your hand, then shuffle your library.)

Compulsive Research

Target player draws three cards. Then that player discards two cards unless they discard a land card.

Vendilion Clique

Flash
Flying
When Vendilion Clique enters the battlefield, look at target player’s hand. You may choose a nonland card from it. If you do, that player reveals the chosen card, puts it on the bottom of their library, then draws a card.

Grim Lavamancer

, , Exile two cards from your graveyard: Grim Lavamancer deals 2 damage to any target.

Hex

Destroy six target creatures.

Abyssal Specter

Flying
Whenever Abyssal Specter deals damage to a player, that player discards a card.

Grim Lavamancer

, , Exile two cards from your graveyard: Grim Lavamancer deals 2 damage to any target.

Compulsive Research

Target player draws three cards. Then that player discards two cards unless they discard a land card.

Rift Bolt

Rift Bolt deals 3 damage to any target.
Suspend 1— (Rather than cast this card from your hand, you may pay and exile it with a time counter on it. At the beginning of your upkeep, remove a time counter. When the last is removed, cast it without paying its mana cost.)

Shoreline Ranger

Flying
Islandcycling (, Discard this card: Search your library for an Island card, reveal it, put it into your hand, then shuffle your library.)

Djinn Illuminatus

( can be paid with either or .)
Flying
Each instant and sorcery spell you cast has replicate. The replicate cost is equal to its mana cost. (When you cast it, copy it for each time you paid its replicate cost. You may choose new targets for the copies.)

Grim Lavamancer

, , Exile two cards from your graveyard: Grim Lavamancer deals 2 damage to any target.

Loyal Sentry

When Loyal Sentry blocks a creature, destroy that creature and Loyal Sentry.