Stellarknight Triverr

Level 4 LIGHT/Warrior Xyz Effect
2100 ATK / 2500 DEF

3 Level 4 "tellarknight" monsters
During the turn you Xyz Summon this card, you cannot Special Summon monsters, except "tellarknight" monsters. If this card is Xyz Summoned: Return all other cards on the field to the hand. Once per turn: You can detach 1 Xyz Material from this card; send 1 random card from your opponent's hand to the Graveyard. If this card with Xyz Material is sent to the Graveyard: You can target 1 "tellarknight" monster in your Graveyard; Special Summon it.

Rulings – Yugipedia

Printings:

The New Challengers: NECH-EN054 (Ultimate Rare) - 2014-11-06
The New Challengers: NECH-EN054 (Ultra Rare) - 2014-11-06
2015 Mega-Tin Mega Pack: MP15-EN165 (Ultra Rare) - 2015-09-17

Prices:

Cardmarket: 1.91 €
TCGplayer: $ 1.68