Petal, Vagabond Seeker

Petal, Vagabond Seeker costs {1} less to cast for each instant and sorcery card in your graveyard.
Prowess
{u}{r}{w}, Exile three instants and/or sorceries at random from your graveyard: Cast an instant or sorcery from your graveyard at random without paying it's mana cost.
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"I have power, what I need is discipline!"