Guardragon Promineses

Level 1 FIRE/Dragon Effect Monster
500 ATK / 200 DEF

You can send this card from your hand or field to the GY, then target 1 Dragon monster you control; it gains 500 ATK/DEF until the end of your opponent's turn. If a Normal Monster(s) is sent to your GY, while this card is in the GY (except during the Damage Step): You can Special Summon this card, but banish it when it leaves the field. You can only use this effect of "Guardragon Promineses" once per turn.

Rulings – Yugipedia

Printings:

Savage Strike: SAST-EN014 (Common) - 2019-01-31
2020 Tin of Lost Memories Mega Pack: MP20-EN010 (Common) - 2020-08-27

Prices:

Cardmarket: 0.07 €
TCGplayer: $ 0.14