added isInGraveyard method
remove MagicPlayCardAction.NONE
added enum for come into play modifications
use MagicPlayMod constants
use isInGraveyard method
replace int constants with enum
replace int with List<MagicPlayMod>
remove MagicPlayCardAction.NONE
replace int with List<MagicPlayMod>
added test scenario for Grave Betrayal
update script to use new constructor
reoder the cases to be more logical