Gem-Knight Seraphinite

Level 5 EARTH/Fairy Fusion Effect
2300 ATK / 1400 DEF

1 "Gem-Knight" monster + 1 LIGHT monster
Must first be Fusion Summoned with the above Fusion Materials. During your Main Phase, you can Normal Summon/Set 1 monster in addition to your Normal Summon/Set. (You can only gain this effect once per turn.)

Rulings – Yugipedia

Printings:

Duel Terminal 7b: DT07-EN082 (Duel Terminal Rare Parallel Rare) - 2013-02-01
Hidden Arsenal 7: Knight of Stars: HA07-EN058 (Super Rare) - 2013-04-26
OTS Tournament Pack 6: OP06-EN026 (Common) - 2017-12-07
Shadows in Valhalla: SHVA-EN048 (Secret Rare) - 2018-08-16

Prices:

Cardmarket: 0.27 €
TCGplayer: $ 0.89