Delta Crow - Anti Reverse

Edison Card Text
Activate only while you control a face-up "Blackwing" monster. If you control exactly 3 "Blackwing" monsters, this card can be activated from your hand. Destroy all face-down Spell and Trap Cards your opponent controls.
Raging Battle • 2009-05-12
No targeting
No Damage Step effect
Banlist • Unlimited
Interactions
If Starlight Road is activated on Heavy Storm and I chain Delta Crow, does Starlight Road fail?!
Heavy Storm is activated, Starlight Road is chained, and Delta Crow is chained to destroy a backrow.
No. Starlight Road was already activated legally, so it will still negate and can Summon Stardust.
Can Trap of Darkness copy Delta Crow - Anti Reverse without meeting Delta Crow's activation conditions?!
Trap of Darkness is activated to copy Delta Crow - Anti Reverse.
No. Trap of Darkness still requires the copied Trap's activation conditions to be met.
Rulings
edisonformat.net
●You can't activate “Delta Crow – Anti Reverse” from your hand if you control 4 or 5 “Blackwing” monsters.
●If you control exactly 3 “Blackwing” monsters, you can activate “Delta Crow – Anti Reverse” from your hand during your turn or during your opponent’s turn.
●The number of “Blackwing” monsters on the field is only an activation requirement. If the number of Blackwings is no longer correct when “Delta Crow – Anti Reverse” resolves, its effect is still applied. “Delta Crow – Anti Reverse” only destroys face-down Spell and Trap Cards. If those cards are chained in response, they are not destroyed.
edisonformat.com
You cannot activate “Delta Crow – Anti Reverse” from your hand if you control 4 or 5 “Blackwing” monsters.
If you control exactly 3 “Blackwing” monsters, you can activate “Delta Crow – Anti Reverse” from your hand during your turn or during your opponent’s turn.
The number of “Blackwing” monsters on the field is only an activation requirement. If the number of Blackwings is no longer correct when “Delta Crow – Anti Reverse” resolves, its effect is still applied. “Delta Crow – Anti Reverse” only destroys face-down Spell and Trap Cards. If those cards are chained in response, they are not destroyed.