Chthonian Emperor Dragon [TAEV-EN019] Ultimate Rare Legendary Collection 2 if this card is the

if this card is the only monster on your side of the field

you can Special Summon 1 "Jurrac" monster with 1700 or less ATK from your Deck

Set: Sun & Moon: Unbroken Bonds Type: Fighting Rarity: Holo Rare Retreat cost: Colorless

and if you do that

Set: XY: BREAKthrough Type: Fighting Rarity: Promo Retreat cost: Colorless

Chthonian Emperor Dragon [TAEV-EN019] Ultimate Rare Legendary Collection 2 if this card is theSet: Tactical Evolution Card type: Gemini Monster Rarity: Ultimate Rare Attack: 2400 Defense: 1500 This card is treated as a Normal Monster while face up on the field or in the Graveyard. While this card is face up on the field, you can Normal Summon it to have it be treated as an Effect Monster with this effect: This card can attack twice during the same Battle Phase.