Siege of the Multivores

When Siege of the Multivores enters the
battlefield, and at the start of your upkeep,
the abilities of all Lhurgoyfs you control will
trigger until the end of your turn as if each card
in all graveyards was all card types. (Card
types include: artifact, creature, instant, land, etc.)
{6}: Until the end of your turn, the abilities of one
target Lhurgoyf you control will trigger as if each
card in all graveyards has no card type. Any
player may play this ability.