If this card attacks while in Defense Position, it is unaffected by "Mirror Force" because "Mirror Force" only destroys monsters in Attack Position. Pretty much the same idea holds true for "Spider Web", as being already in Defense Mode, it won't be changed if it attacks.
This card also works well with (or against) "Level Limit - Area B" as it can still attack since "Area B" only switches monsters to Defense Position, not prevent them from attacking. However, this won't work against "Gravity Bind".
Equip this card with "Shooting Star Bow - Ceal" and other Equip Cards to continually attack your opponent's Life Points while simultaneously protecting yours.
"Magnum Shield" is a good Equip Card to use with this card. It works well while it's in Attack Position and in Defense Position to have a solid wall or a solid attacker, based on what you need at the time.
"Spikeshield with Chain" is also a great card that works with "Shogun", as it will gain 500 ATK, plus another 1550 points when it battles another monster in Defense Position during damage calculation.