Interdimensional Web Watch - Marvel's Spider-Man - 278

Artifact

Mana Cost: {4}

When this artifact enters, exile the top two cards of your library. Until the end of your next turn, you may play those cards.
{T}: Add two mana in any combination of colors. Spend this mana only to cast spells from exile.

Rare · Marvel's Spider-Man · #278 (SPM)

Illustrated by Toni Infante