Mirrodin Besieged

Gain control of target artifact until end of turn. Untap that artifact. It gains haste until end of turn.

Sacrifice Gore Vassal: Put a -1/-1 counter on target creature. Then if that creature's toughness is 1 or greater, regenerate it.

When Kuldotha Flamefiend enters the battlefield, you may sacrifice an artifact. If you do, Kuldotha Flamefiend deals 4 damage divided as you choose...

Exile two target artifacts.

Whenever a source deals damage to Nested Ghoul, create a 2/2 black Zombie creature token.

Put target creature card from an opponent's graveyard onto the battlefield under your control. It gains haste. Exile it at the beginning of the nex...

Put a -1/-1 counter on each attacking creature.

At the beginning of your upkeep, you may put a charge counter on target artifact.

{2}{U}, {T}: Put a -1/-1 counter on target creature. You may tap or untap that creature.

When Treasure Mage enters the battlefield, you may search your library for an artifact card with converted mana cost 6 or greater, reveal it, put i...

Shroud (This creature can't be the target of spells or abilities.) Whenever Neurok Commando deals combat damage to a player, you may draw a card.

Equipped creature gets +1/+0 and has first strike. Equip {1}

Sphere of the Suns enters the battlefield tapped and with three charge counters on it. {T}, Remove a charge counter from Sphere of the Suns: Add on...

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

When Pierce Strider enters the battlefield, target opponent loses 3 life.

When Peace Strider enters the battlefield, you gain 3 life.

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

Flying

Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.) {T}: Add {C}.

Destroy target nonartifact creature.

{T}, Sacrifice a creature: Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Sphere of the Suns enters the battlefield tapped and with three charge counters on it. {T}, Remove a charge counter from Sphere of the Suns: Add on...

Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.) {T}: Add {C}.

Battle cry (Whenever this creature attacks, each other attacking creature gets +1/+0 until end of turn.)