Mirrodin Besieged

Put X -1/-1 counters on each creature. Shuffle Black Sun's Zenith into its owner's library.

Imprint — {T}: Exile target artifact card from a graveyard. Myr Welder has all activated abilities of all cards exiled with it.

Put X -1/-1 counters on each creature. Shuffle Black Sun's Zenith into its owner's library.

Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.) At the beginning of y...

Flash You may cast artifact spells as though they had flash.

Red Sun's Zenith deals X damage to any target. If a creature dealt damage this way would die this turn, exile it instead. Shuffle Red Sun's Zenith ...

{4}, {T}: Target opponent loses 2 life, gets a poison counter, then mills six cards.

First strike, protection from red and from white Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in th...

Destroy all creatures, then create an X/X colorless Phyrexian Horror artifact creature token, where X is the number of creatures destroyed this way.

Psychosis Crawler's power and toughness are each equal to the number of cards in your hand. Whenever you draw a card, each opponent loses 1 life.

Look at the top seven cards of your library. You may put one of those cards onto the battlefield if it has the same name as a permanent. Put the re...

Psychosis Crawler's power and toughness are each equal to the number of cards in your hand. Whenever you draw a card, each opponent loses 1 life.

Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.) At the beginning of y...

At the beginning of your upkeep, you may have Cryptoplasm become a copy of another target creature, except it has this ability.

Flash You may cast artifact spells as though they had flash.

Search your library for a card, exile it, then shuffle. Any opponent may have you put that card into your hand. If no player does, you draw three c...

Flying Whenever Victory's Herald attacks, attacking creatures gain flying and lifelink until end of turn.

Choose one — • Slagstorm deals 3 damage to each creature. • Slagstorm deals 3 damage to each player.

At the beginning of your upkeep, you may look at the top card of your library. If it's an instant or sorcery card, you may cast it without paying i...

Look at the top seven cards of your library. You may put one of those cards onto the battlefield if it has the same name as a permanent. Put the re...

Destroy all creatures, then create an X/X colorless Horror artifact creature token, where X is the number of creatures destroyed this way.

Living weapon (When this Equipment enters the battlefield, create a 0/0 black Germ creature token, then attach this to it.) Equipped creature gets ...