Stellarknight Delteros
Warrior / Xyz / Effect
LIGHT / 
43 Level 4 monsters
While this card has Xyz Material, your opponent cannot activate cards or effects when you Normal or Special Summon a monster(s). Once per turn: You can detach 1 Xyz Material from this card, then target 1 card on the field; destroy it. If this card is sent from the field to the Graveyard: You can Special Summon 1 "tellarknight" monster from your hand or Deck.
2500/2100
CARD ID: 56638325
STATUS TCG: Unlimited
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| TCG Set | Symbol | Rarity | Low | Avg | Trend | |
|---|---|---|---|---|---|---|
| 2015 Mega-Tin Mega Pack | MP15-EN098 | Secret Rare | -,--€ | -,--€ | -,--€ | |
| Duelist Alliance | DUEA-EN053 | Ghost Rare | -,--€ | -,--€ | -,--€ | |
| Duelist Alliance | DUEA-EN053 | Secret Rare | -,--€ | -,--€ | -,--€ | |
| Duelist Alliance | DUEA-EN053 | Ultimate Rare | -,--€ | -,--€ | -,--€ |
The card's name is a portmanteau of Delta (the format of its shield) and Theros, which is Greek for Summer.
This card's triangle shield and the fact that it can be summoned with three monsters named after the stars Altair, Deneb and Vega, are references to the Summer Triangle.
This monster also reflects this by incorporating design elements from Satellarknight Altair, Satellarknight Vega, and Satellarknight Deneb. This is apparent, but not limited, by the pink parts on his legs (Vega's pink dress), his blue underarmor (Altair's blue underarmor), and his golden armor trim and sword (Deneb's golden armor trim and sword).
The all three original emblem parts are present in Deleteros'chest: Deneb's back, Altair's jerkin and the bottom of Vega's harp. Moreover, the helmet of the members are fused, to form the present one.
As well as Delteros armor, the star constellations in the background are, but not limited to, the colour yellow/gold (Deneb), pink/red (Altair) and finally blue (Vega) - the very same colour of the constellations which appear in those monster's backgrounds.
The staff this monster wields in the same as that of Deneb's, the Caduceus. The present crystals shine with an orange brightness instead of white, reminding the color of the summer that symbolizes this monster.
This monster appears in the artworks of Stellarnova Alpha, Stellarnova Wave and Hexatellarknight
This monster's creation is likely depicted in the artwork of Stellarknight Alpha.
This card's triangle shield and the fact that it can be summoned with three monsters named after the stars Altair, Deneb and Vega, are references to the Summer Triangle.
This monster also reflects this by incorporating design elements from Satellarknight Altair, Satellarknight Vega, and Satellarknight Deneb. This is apparent, but not limited, by the pink parts on his legs (Vega's pink dress), his blue underarmor (Altair's blue underarmor), and his golden armor trim and sword (Deneb's golden armor trim and sword).
The all three original emblem parts are present in Deleteros'chest: Deneb's back, Altair's jerkin and the bottom of Vega's harp. Moreover, the helmet of the members are fused, to form the present one.
As well as Delteros armor, the star constellations in the background are, but not limited to, the colour yellow/gold (Deneb), pink/red (Altair) and finally blue (Vega) - the very same colour of the constellations which appear in those monster's backgrounds.
The staff this monster wields in the same as that of Deneb's, the Caduceus. The present crystals shine with an orange brightness instead of white, reminding the color of the summer that symbolizes this monster.
This monster appears in the artworks of Stellarnova Alpha, Stellarnova Wave and Hexatellarknight
This monster's creation is likely depicted in the artwork of Stellarknight Alpha.
OCG Rulings
This card is treated as a "tellarknight" monster: Stellarknight Delteros
"While this card has Xyz Material, your opponent cannot activate cards or effects when you Normal or Special Summon a monster(s)." effect is a Continuous Effect.
"While this card has Xyz Material, your opponent cannot activate cards or effects when you Normal or Special Summon a monster(s)." effect is also applied when this card is Special Summoned.
"Once per turn: You can detach 1 Xyz Material from this card, then target 1 card on the field; destroy it." effect is an Ignition Effect. (This effect targets 1 card on the field. Detaching 1 Xyz Material is a cost to activate this effect.)
"If this card is sent from the field to the Graveyard: You can Special Summon 1 "tellarknight" monster from your hand or Deck." effect is a Trigger Effect. (This effect does not target. It can be activated during the Damage Step.)