these weren't being picked up as removal spells and now are:
* modal spells where one mode is a removal spell
* spells that do a dynamic amount of damage, such as fireball
* cards that reduce the toughness temporarily or permanently
* cards that keep a creature tapped down
* cards that exile a creature
* cards that damage creatures that are attacking or blocking
* enchantments that exile a creature when they etb
* fight cards, and one sided fight cards
the ai will now rate those types of cards higher as they are removal
"b" + "r" now changed to 'b' + 'w'. It's more straight-forward, and may cause perfomance improvements - character primitives allocation is faster and less expensive than string creation.
