Dalakos, Crafter of Wonders [Theros Beyond Death Prerelease Promos] SPA Brontodón aplastador Set: Commander 2015 Type: Instant

Set: Commander 2015 Type: Instant Common Cost: {X}{U} Return target nonland permanent with converted mana cost X to its owner's hand

you may cast the copy without paying its mana cost

Set: Iconic Masters Type: Creature — Wall Common Cost: {4}{U} Defender When Mnemonic Wall enters the battlefield

Sacrifice eight Spirits: Return Sekki from your graveyard to the battlefield

They certainly are

Dalakos, Crafter of Wonders [Theros Beyond Death Prerelease Promos] SPA Brontodón aplastador Set: Commander 2015 Type: InstantSet: Theros Beyond Death Prerelease Promos Type: Legendary Creature Merfolk Artificer Rarity: Rare Cost: {1}{U}{R} {T}: Add {C}{C}. Spend this mana only to cast artifact spells or activate abilities of artifacts. Equipped creatures you control have flying and haste. His imagination soars from the depths of the sea to the heights of the heavens.