added assertion of non-null names in noAttack feature
added assertion of non-null names in noAttack feature

SirPython/Cardshifter,June92/Cardshifter,Cardshifter/Cardshifter,Cardshifter/Cardshifter,June92/Cardshifter,SirPython/Cardshifter,Cardshifter/Cardshifter,June92/Cardshifter,SirPython/Cardshifter