Your search for "Dragunity Knight - Trident HA04-EN028" revealed the following:
Dragunity Knight - Trident - HAC1-EN164 - Common - 1st Edition from Hidden Arsenal: Chapter 1 1st Edition, available at 401 Games Canada. Rarity: Common Card Text:1 Dragon-Type Tuner + 1 or more non-Tuner Winged Beast-Type monstersOnce per turn, you...
Dragunity Knight - Trident - HA04-EN028 - Secret Rare - 1st Edition from Hidden Arsenal 4: Trishula's Triumph 1st Edition, available at 401 Games Canada. Rarity: Secret Rare Card Text:1 Dragon-Type Tuner + 1 or more non-Tuner Winged Beast-Type monsters....
Dragunity Knight - Trident - HA04-EN028 - Secret Rare - Unlimited from Hidden Arsenal 4: Trishula's Triumph Unlimited, available at 401 Games Canada. Rarity: Secret Rare Card Text:1 Dragon-Type Tuner + 1 or more non-Tuner Winged Beast-Type monsters. // Once...
Dragunity Knight - Trident - DT04-EN040 - Duel Terminal Ultra Parallel Rare from Duel Terminal 4, available at 401 Games Canada. Rarity: Duel Terminal Ultra Parallel Rare Card Text:1 Dragon-Type Tuner + 1 or more non-Tuner Winged Beast-Type monsters. //...