Cataclysm Games

Creature — Wall

Defender (This creature can't attack.) Whenever you discard a card, you may sacrifice this creature. If you do, return the discarded card from your graveyard to your hand.

Sorcery

Sacrifice any number of permanents you control, then draw that many cards. Plot {1}{B}{B} (You may pay {1}{B}{B} and exile this card from your hand. Cast it as a sorcery on a later turn without paying its mana cost. Plot only as a sorcery.)

Creature — Demon

First strike At the beginning of your upkeep, sacrifice this creature unless you pay {B}{B}. Whenever this creature deals damage to a creature, exile that creature.

Artifact

{2}, {T}, Sacrifice this artifact: Destroy target attacking creature without flying. It can't be regenerated.

Artifact

At the beginning of your upkeep, put a plague counter on this artifact. {1}{B}{G}: Put a plague counter on this artifact or remove a plague counter from it. When this artifact has three or more plague counters on it, sacrifice it. If you do, destroy all nonland permanents.

Creature — Human Shaman

When this creature enters, each player sacrifices a creature or planeswalker of their choice. Each player who can't discards a card.

Creature — Phyrexian Carrier

Deathtouch As this creature enters, choose a creature type. Creatures of the chosen type your opponents control get -1/-1.

Artifact Creature — Phyrexian Myr

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}.

Creature — Phyrexian Insect Horror

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

Creature — Elf Spellshaper

{B}, {T}, Discard a card: Target creature gets -1/-1 until end of turn.

Basic Land — Plains

({T}: Add {W}.)