Maskwood Nexus (Double Rainbow Foil) [Secret Lair Drop Series] Siren Pirate then you may cast the

then you may cast the copy without paying its mana cost

When Tishana's Tidebinder enters the battlefield

000 Type: Artifact Rarity: Common Cost: {2} {T}: Add one mana of any color in your commander's color identity

Eternity Gate — Whenever Necron Monolith attacks

Maskwood Nexus (Double Rainbow Foil) [Secret Lair Drop Series] Siren Pirate then you may cast theSet: Secret Lair Drop Series Type: Artifact Rarity: Rare Cost: {4} Creatures you control are every creature type. The same is true for creature spells you control and creature cards you own that aren't on the battlefield. {3}, {T}: Create a 2 2 blue Shapeshifter creature token with changeling. (It is every creature type.)