Ashnod's Altar [Antiquities] Super Rare Number: LVAL-EN057 Rarity: Secret Rare

Number: LVAL-EN057 Rarity: Secret Rare Attribute Monster Type/Card Type: DARK Spellcaster/Xyz/Effect Monster Level: 4 A / D: 2100 / 200 Description: 2 Level 4 Spellcaster-Type monsters // During your Main Phase 2

Flip a coin until you flip tails

and a checklist

Meta-Data: DOB: October 16

Its non-shiny equivalent was released as a promo card in the Champion's Path Elite Trainer Box

Ashnod's Altar [Antiquities] Super Rare Number: LVAL-EN057 Rarity: Secret RareRarity: U Card Type: Poly Artifact Description: 0: Sacrifice one of your creatures to add 2 colorless mana to your mana pool. This effect is played as an interrupt. You may not sacrifice a creature that is already on its way to the graveyard.