Effect
If this card attacks a Defense Position monster your opponent controls, before damage calculation: You can destroy that monster.
The monster effect of "Heroic Challenger - Nightshroud Lantern" is a Trigger Effect.
It does not target.
It is an optional effect that can be activated before damage calculation when "Heroic Challenger - Nightshroud Lantern" attacks a Defense Position monster.
You can activate this effect even before damage calculation when "Heroic Challenger - Nightshroud Lantern" attacks a face-down Defense Position monster. (The effect is activated after the attacked monster is flipped face-up before damage calculation.)
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