Mirrodin Besieged

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

({T}: Add {U}.)

When Ichor Wellspring enters the battlefield or is put into a graveyard from the battlefield, draw a card.

({T}: Add {R}.)

({T}: Add {B}.)

{3}, {T}: Put a charge counter on Titan Forge. {T}, Remove three charge counters from Titan Forge: Create a 9/9 colorless Golem artifact creature t...

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 {U}.)

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

When Myr Sire dies, create a 1/1 colorless Phyrexian Myr artifact creature token.

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

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

({T}: Add {B}.)

(A player with ten or more poison counters loses the game.)

Flying

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

({T}: Add {R}.)

({T}: Add {U}.)

({T}: Add {W}.)

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

({T}: Add {B}.)

Battle cry (Whenever this creature attacks, each other attacking creature gets +1/+0 until end of turn.) Signal Pest can't be blocked except by cr...