Plague of Dragons

If you have one or fewer cards in hand, you
may spend {x}{b}{r}{r} instead of paying Plague
of Dragon's mana cost.
Create X 5/5 red Dragon creature tokens
with flying and "At the beginning of your
upkeep, if you have one or fewer cards in hand,
deal 1 damage to each non Dragon creature."
Always beware of a blackened sky.