Gravekeeper's Assailant

Edison Card Text
If "Necrovalley" is on the field when this card declares an attack, you can change the battle position of 1 face-up monster your opponent controls.
Retro Pack 2 • 2009-07-24
Targets
No Damage Step effect
Banlist • Unlimited
Interactions
Does Gravekeeper's Assailant trigger a Flip effect when it attacks a face-down monster?!
Assailant attacks a face-down monster and changes its position.
No. Assailant does not flip the monster face-up, so a Flip effect does not activate.
Rulings
edisonformat.net
●The optional Trigger Effect activates in Start of the Battle Phase - Attack Declaration.
●This effect targets 1 face-up monster your opponent controls.
●If the target is no longer face-up, its battle position is not changed.
●The target can only be changed to face-up Defense Position. This effect does not Set the target.
●This effect can be activated even if Necrovalley's effects are negated by Magic Deflector.
●Necrovalley only needs to be face-up when this effect activates, not when it resolves.
●VS. Spirit Reaper: When targeted by Assailant, Spirit Reaper is destroyed by its own effect. Then a replay occurs, as the number of attack targets changed before entering the Damage Step. In this case, Gravekeeper’s Assailant can attack again, and can activate its effect again.
edisonformat.com
(1) If "Necrovalley" is on the field when this card declares an attack, you can change the battle position of 1 face-up monster your opponent controls.
The (1) optional Trigger Effect activates in Start of the Battle Phase - Attack Declaration.
This effect targets 1 face-up monster your opponent controls.
If the target is no longer face-up, its battle position is not changed.
The target can only be changed to face-up Defense Position. This effect does not Set the target.
This effect can be activated even if "Necrovalley's" effects are negated by "Magic Deflector".
"Necrovalley" only needs to be face-up when this effect activates, not when it resolves.
VS. "Spirit Reaper": When targeted by Assailant, "Spirit Reaper" is destroyed by its own effect. Then a replay occurs, as the number of attack targets changed before entering the Damage Step. In this case, "Gravekeeper’s Assailant" can attack again, and can activate its effect again.