Prophecy

Defender (This creature can't attack.) {3}: Destroy Wall of Vipers and target creature it's blocking. Any player may activate this ability.

Sacrifice a land: Prevent the next 2 damage that would be dealt to any target this turn.

{W}{W}: Target attacking creature gets -1/-0 until end of turn.

Whenever Fickle Efreet attacks or blocks, flip a coin at end of combat. If you lose the flip, an opponent gains control of Fickle Efreet.

If an opponent controls seven or more lands, this spell costs {6} less to cast. Flying {R}: Avatar of Fury gets +1/+0 until end of turn.

Rebel Informer can't be the target of white spells or abilities from white sources. {3}: Put target nontoken Rebel on the bottom of its owner's lib...

Whenever Plague Fiend deals combat damage to a creature, destroy that creature unless its controller pays {2}.

Flying, first strike At the beginning of your upkeep, sacrifice Pit Raptor unless you pay {2}{B}{B}.

{X}{B}, {T}, Discard two cards: Target player discards X cards at random.

Flying, vigilance

{B}: Regenerate Chilling Apparition. Whenever Chilling Apparition deals combat damage to a player, that player discards a card.

Flying {T}, Sacrifice a land: Search your library for a Mercenary permanent card with converted mana cost 2 or less and put it onto the battlefield...

{1}{B}, Sacrifice a land: Target creature gets +2/+0 until end of turn.

Flying (This creature can't be blocked except by creatures with flying or reach.) Sacrifice Spiketail Hatchling: Counter target spell unless its co...

Flying Sacrifice Spiketail Drake: Counter target spell unless its controller pays {3}.

Defender (This creature can't attack.) {4}: Return Quicksilver Wall to its owner's hand. Any player may activate this ability.

Hazy Homunculus can't be blocked as long as defending player controls an untapped land.

When Gulf Squid enters the battlefield, tap all lands target player controls.

If you have 3 or less life, this spell costs {6} less to cast. Flying Avatar of Hope can block any number of creatures.

{X}{U}, {T}, Discard two cards: Return X target creatures to their owners' hands.

Sacrifice a land: Prevent the next 2 damage that would be dealt to any target this turn.

Sacrifice a land: Trenching Steed gets +0/+3 until end of turn.

{W}{W}: Target attacking creature gets -1/-0 until end of turn.

Whenever Soul Charmer deals combat damage to a creature, you gain 2 life unless that creature's controller pays {2}.