Knight of the Holy Nimbus

Oracle Text

Flanking (Whenever a creature without flanking blocks this creature, the blocking creature gets -1/-1 until end of turn.)

If Knight of the Holy Nimbus would be destroyed, regenerate it.

2: Knight of the Holy Nimbus can't be regenerated this turn. Only any opponent may activate this ability.

Card Rulings

9/25/2006 The second ability essentially means that Knight of the Holy Nimbus always has a regeneration shield. It retains that shield even if it’s used.
9/25/2006 After the third ability resolves, regeneration shields don’t work on Knight of the Holy Nimbus for the remainder of the turn. This includes its own automatic shield as well as shields from other sources.