Hexfire

Convoke (Your creatures can help cast this spell.
Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.)
Hexfire deals 2 damage to target untapped
creature. Its controller discards a card.
Temerity—{b}{r}, Pay 2 life. (You may cast this
spell for its temerity cost. If you do, its targets are
chosen at random.)