Flusterstorm

Counter target instant or sorcery spell unless its controller pays {1}.
Storm (When you cast this spell, copy it for each spell cast before it this turn. You may choose new targets for the copies.)

Dovin's Veto

This spell can't be countered.
Counter target noncreature spell.

Don't Have

Generous Gift

Destroy target permanent. Its controller creates a 3/3 green Elephant creature token.

Banishing Knack

Until end of turn, target creature gains "{T}: Return target nonland permanent to its owner's hand."

Snow-Covered Island

Altar of the Brood

Whenever another permanent you control enters, each opponent mills a card.

Nettle Drone

Devoid (This card has no color.)
{T}: Nettle Drone deals 1 damage to each opponent.
Whenever you cast a colorless spell, untap Nettle Drone.

Hallowed Fountain

({T}: Add {W} or {U}.)
As Hallowed Fountain enters, you may pay 2 life. If you don't, it enters tapped.

Midnight Guard

Whenever another creature enters, untap Midnight Guard.

Serum Visions

Solve the Equation

Search your library for an instant or sorcery card, reveal it, put it into your hand, then shuffle.

Mirran Spy

Flying
Whenever you cast an artifact spell, you may untap target creature.

Ornithopter

Rest in Peace

When Rest in Peace enters, exile all graveyards.
If a card or token would be put into a graveyard from anywhere, exile it instead.

Fabricate

Search your library for an artifact card, reveal it, put it into your hand, then shuffle.

Memnite

Retraction Helix

Glacial Fortress

Glacial Fortress enters tapped unless you control a Plains or an Island.
{T}: Add {W} or {U}.

Swan Song

Counter target enchantment, instant, or sorcery spell. Its controller creates a 2/2 blue Bird creature token with flying.