Play Commander online with MTGO
In addition to incubation, Brimaz also lets you Proliferate at the beginning of each end step if a Phyrexian died under your control that turn
Unfortunately, because human-driven factory error cards are almost always the same across the board for a given set (save for a couple of small exceptions), these cards hardly ever drive a premium
They liked the idea of a plane that dealt damage to all creatures and planeswalkers, and then looked for a plane that made sense for the effect
I subsequently brought my collection in for a free evaluation
2017-07-14 If the cost of an ability or an additional cost of a spell requires putting counters on an artifact, creature, enchantment, or land, that cost can't be paid