Mirrodin Besieged

Whenever an artifact is put into a graveyard from the battlefield, you may gain 5 life.

{2}{B}: This creature gets +1/+1 until end of turn.

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...

Destroy target artifact. You gain life equal to its mana value.

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

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

Destroy target noncreature artifact.

Destroy all artifacts.

Enchant creature You control enchanted creature. Enchanted creature has infect. (It deals damage to creatures in the form of -1/-1 counters and to ...

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

Equipped creature gets +2/+2 and can't block. Equip {3} ({3}: Attach to target creature you control. Equip only as a sorcery.)

Whenever a creature deals combat damage to you, that creature's controller gains control of this land. {T}: Add {C}. {1}, {T}: Attacking creatures ...

Concussive Bolt deals 4 damage to target player or planeswalker. Metalcraft — If you control three or more artifacts, creatures controlled by that ...

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

When this creature dies, each player loses 4 life.

Burn the Impure deals 3 damage to target creature. If that creature has infect, Burn the Impure deals 3 damage to that creature's controller.

When this creature enters, it deals 1 damage to any target.

Reach (This creature can block creatures with flying.) Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players...

{W}: This creature gains vigilance until end of turn.

Put target artifact, creature, or enchantment on top of its owner's library.

Metalcraft — This creature gets +2/+2 as long as you control three or more artifacts.

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

Attacking creatures get +1/+0 and gain first strike until end of turn.

When Viridian Emissary dies, you may search your library for a basic land card, put it onto the battlefield tapped, then shuffle.