Jet Collector

Mana cost: {1}{G}

Type: Creature — Merfolk Scout

At the beginning of your second main phase, if four or more cards are in your graveyard, conjure a card named Mox Jet into your hand. This ability triggers only once.
{X}{B}: Put target creature card with mana value X from your graveyard onto the battlefield with a finality counter on it. Activate only as a sorcery.

All printings