Zir-Ferex, Fount of Phyrexia

As long as the number of oil counters on permanents you control is less than 7,
Zir-Ferex, Fount of Phyrexia is not a creature.
Reach
At the beginning of your upkeep, put an oil counter on each of up to two target permanents. Whenever Zir-Ferex, Fount of Phyrexia or another permanent you control leaves the battlefeild, discover X, where X is the number of oil counters
on that permanent.