Norn's Inquisitor
Creature — Phyrexian Knight
When this creature enters, incubate 2.
Whenever a permanent you control transforms into a Phyrexian, put a +1/+1 counter on it.
Denis Zhbankov
March of the Machine (MOM)
• #381Rulings
The last ability of Norn's Inquisitor will trigger if a permanent you control transforms in either direction, going from front face up to back face up or vice versa, as long as it's a Phyrexian after doing so.
(wotc • 2023-04-14)
Only transforming double-faced permanents (including transforming double-faced cards and Incubator tokens) can transform. A face-up permanent turning face down doesn't count as transforming, nor does a face-down permanent turning face up.
(wotc • 2023-04-14)
Rulings
The last ability of Norn's Inquisitor will trigger if a permanent you control transforms in either direction, going from front face up to back face up or vice versa, as long as it's a Phyrexian after doing so.
(wotc • 2023-04-14)
Only transforming double-faced permanents (including transforming double-faced cards and Incubator tokens) can transform. A face-up permanent turning face down doesn't count as transforming, nor does a face-down permanent turning face up.
(wotc • 2023-04-14)