Deal damage to everything? Meaning deals 1 damage to every creature on the field? Yours and your opponent's? All of fire's creaures share low hp (seraph 1, phoenix 1, ruby 2 , golem 1, spectre 3, brimstone 1) I dont see how this would improve fire rush as soon as it would prolly kill all of your creatures. I suggest something like deals 1 damage at the end of your turn to all of your opponent's creatures perhaps?