Scuttling Doom Engine [Duel Decks: Elves vs. Inventors] Pioneer then you may pay {E}{E}{E}{E}{E}{E}{E}{E}

then you may pay {E}{E}{E}{E}{E}{E}{E}{E}

Set: Dominaria Type: Legendary Planeswalker — Karn Rarity: Mythic Cost: {4} +1: Reveal the top two cards of your library

Set: Weatherlight Type: Instant Rarity: Rare Cost: {1}{W} Until end of turn

so are they

Scuttling Doom Engine [Duel Decks: Elves vs. Inventors] Pioneer then you may pay {E}{E}{E}{E}{E}{E}{E}{E}Set: Duel Decks: Elves vs. Inventors Type: Artifact Creature Construct Rarity: Rare Cost: {6} Scuttling Doom Engine can't be blocked by creatures with power 2 or less. When Scuttling Doom Engine dies, it deals 6 damage to target opponent or planeswalker. A masterwork of spite, inspired by madness.