Protego Diabolica

You have Hexproof
Whenever a creature dies, put a flame counter on
Protego Diabolica, and it deals 1 damage to any
target.
{b/r}{u/r}:Create a blue and red Fire Dragon creature
token with flying and menace with "This creature's
power and toughness are each equal to the number
of flame counters on permanents you control".
Activate only once each turn.