Knight Of The Eternal Flame

Haste, Trample, Menace
Incinerate 5 {2}{r}{r} (Whenever this creature attacks, you may pay its incinerate cost. if you
do, deal 5 damage to each of your opponent's creatures.)
Whenever this creature attacks, if it's incinerate cost was paid, it gets +X+X until
end of turn, where X is the number of creatures incinerated.