Portal to Phyrexia (Promo Pack) [The Brothers' War Promos] DP20 then put two cards from

then put two cards from your hand on top of your library in any order

Phyrexian Broodstar's power and toughness are each equal to the number of Phyrexians you control

Set: Secret Lair Drop Series Type: Enchantment Rarity: Rare Cost: {2}{G}{G} Sacrifice a creature: Draw cards equal to the sacrificed creature's power

or if it's just a special card for MagicCon Philadelphia

Portal to Phyrexia (Promo Pack) [The Brothers' War Promos] DP20 then put two cards fromSet: The Brothers' War Promos Type: Artifact Artifact Rarity: Mythic Cost: {9} When Portal to Phyrexia enters the battlefield, each opponent sacrifices three creatures. At the beginning of your upkeep, put target creature card from a graveyard onto the battlefield under your control. It's a Phyrexian in addition to its other types. After five thousand years, the nightmare returned.