The Doodle Demon

The Doodle Demon enters the battlefield with
X +1/+1 counters on it.
{3}{r}{r},{t}: Deal X damage to X target creatures
and X target opponents, where X is equal to the
number of red Mana used to summon
The Doodle Demon.
{2}{r}{r},{t}: Double the number of +1/+1
counters on The Doodle Demon