Wildfire

whenever you cast an instant or sorcery spell, creatures you control get +1/+0 until end of turn
Whenever you would deal damage to a creature
or player, add 1 to that damage for each instant
or sorcery spell you've cast this turn.
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First came the distant crackle of thunder on a clear
day, then the dim glare of dull red through the trees,
then the thick, cloying smoke, and finally, the wall
of heat.