Why don’t we call them Constellarknights anyways?
CYAC-JP021 星騎士リュラ Tellarknight Lyra
Level 4 LIGHT Warrior Effect Monster
ATK 1200
DEF 1600
(This card is always treated as a “Constellar” card.)
You can only use the (1)st and (2)nd effect of this card’s name each once per turn.
(1) If a “Tellarknight” and/or “Constellar” monster other than “Tellarknight Lyra” is Normal Summoned to your field: You can Special Summon this card from your hand.
(2) If this card is Summoned: You can add 1 “Tellarknight” Spell from your Deck to your hand.
CYAC-JP020 星騎士 アルテア Tellarknight Altea
Level 4 LIGHT Warrior Effect Monster
ATK 1700
DEF 1300
(This card is always treated as a “Constellar” card.)
You can only use the (1)st and (2)nd effect of this card’s name each once per turn.
(1) If this card is Summoned: You can target cards on the field up to the number of LIGHT and DARK Xyz Monsters you control; destroy them.
(2) If a “Tellarknight” and/or “Constellar” monster(s) other than “Tellarknight Altea” is Special Summoned to your field: You can Special Summon this card from your GY, also you cannot declare attack for the rest of this turn, except with Xyz Monsters.
Note: Near as I can tell this is just another spelling of Altair.
CYAC-JP045 星騎士 セイクリッド・カドケウス Tellarknight Sacred Caduceus (Tellarknight Constellar Caduceus)
Rank 4 LIGHT Spellcaster Xyz Effect Monster
ATK 2500
DEF 1650
Materials: 2+ Level 4 monsters
You can only use the (1)st and (2)nd effect of this card’s name each once per turn.
(1) If this card is Xyz Summoned: You can target 1 “Tellarknight” card and/or 1 “Constellar” card in your GY; add them to your hand.
(2) You can banish 1 “Tellarknight” or “Constellar” monster from your hand or Deck then detach 1 material from this card; this effect becomes that banished monster’s activated effect when that monster is Normal Summoned.
CYAC-JP064 星守の騎士団 Tellarknight Sacred (Tellarknight Constellar)
Continuous Spell Card
You can only activate 1 card with this card’s name per turn. You can only use the 2nd effect of this card’s name once per turn.
(1) When this card resolves, you can Special Summon 1 “Tellarknight” or “Constellar” monster from your hand or GY.
(2) You can target 1 “Tellarknight” or “Constellar” Xyz Monster you control; Special Summon from your Extra Deck, 1 “Tellarknight” or “Constellar” Xyz Monster with a different Rank from that monster you control, by using it as material. (This is treated as an Xyz Summon. Transfer its materials to the Summoned monster.)
Source: Jump Festa