Fléau

Whenever a player casts a spell, you may put a +1/+1 counter on Forgotten Ancient. At the beginning of your upkeep, you may move any number of +1/+...

Whenever a spell or ability is put onto the stack, if it has a single target, reselect its target at random. (Select from among all legal targets.)

At the beginning of your upkeep, Form of the Dragon deals 5 damage to any target. At the beginning of each end step, your life total becomes 5. C...

Search your library for a Dragon permanent card, put it onto the battlefield, then shuffle. Storm (When you cast this spell, copy it for each spell...

Exile all permanents. For as long as any of those cards remain exiled, at the beginning of each player's upkeep, that player returns one of the exi...

Flying, trample Double strike (This creature deals both first-strike and regular combat damage.) At the beginning of your upkeep, sacrifice Dragon ...

Flying Whenever Dragon Mage deals combat damage to a player, each player discards their hand, then draws seven cards.

Exile all artifacts, creatures, and lands from the battlefield, all cards from all graveyards, and all cards from all hands. Cycling {5}{R}{R} ({5}...

Create X 4/4 white Angel creature tokens with flying. Cycling {2}{W} ({2}{W}, Discard this card: Draw a card.) When you cycle Decree of Justice, yo...

Flying Whenever a creature dealt damage by Soul Collector this turn dies, return that card to the battlefield under your control. Morph {B}{B}{B} (...

Whenever Nefashu attacks, up to five target creatures each get -1/-1 until end of turn.

Flying Prevent all damage that would be dealt to Dawn Elemental.

Whenever a creature enters the battlefield, destroy it. {0}: Destroy Lethal Vapors. You skip your next turn. Any player may activate this ability.

Target player loses life equal to the damage already dealt to that player this turn.

Destroy all creatures. They can't be regenerated. Draw a card for each creature destroyed this way. Cycling {3}{B}{B} ({3}{B}{B}, Discard this car...

{2}{B}{B}: Target creature gets -1/-1 until end of turn. Put a +1/+1 counter on Consumptive Goo.

At the beginning of each player's upkeep, that player sacrifices a non-Zombie creature. At the beginning of the end step, if no creatures are on t...

Any number of target players each discard a number of cards equal to the highest mana value among permanents you control.

Counter target activated or triggered ability. (Mana abilities can't be targeted.)

Whenever Raven Guild Master deals combat damage to a player, that player exiles the top ten cards of their library. Morph {2}{U}{U} (You may cast t...

When Parallel Thoughts enters the battlefield, search your library for seven cards, exile them in a face-down pile, and shuffle that pile. Then shu...

{3}{U}{U}: Turn Mischievous Quanar face down. Morph {1}{U}{U} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time...

Shuffle your library. Then exile the top card of your library. Until end of turn, you may play that card without paying its mana cost. Storm (When ...

Whenever a creature dies, tap all untapped creatures that share a creature type with it or untap all tapped creatures that share a creature type wi...