Heatran (SM96) (Staff Prerelease Promo) [Sun & Moon: Black Star Promos] XY44 It gains ATK equal to

It gains ATK equal to the total ATK of all face-up "Blackwing" monsters on the field except itself

This card cannot be Special Summoned except with "Attack Reflector Unit"

or if this card in your possession is destroyed by an opponent's card effect and sent to your Graveyard: You can Special Summon 1 "Gaia The Fierce Knight" monster from your hand

If this card is Tributed by a card's effect and sent to the Graveyard

Heatran (SM96) (Staff Prerelease Promo) [Sun & Moon: Black Star Promos] XY44 It gains ATK equal toSet: Sun & Moon: Black Star Promos Type: Metal Rarity: Promo Retreat cost: Colorless,Colorless,Colorless