type Contextual a = ObjectRef -> PlayerRef -> a
Removed general data type AdditionalCosts; added more specific TapCost
Added catch-all pattern for Angelic Benediction trigger
Changed argument order of TriggeredAbility
Fixed module Json to work with GainLife/LoseLife
Added card Aven Squire
Added card Battleflight Eagle
Created helper function onSelfETB
Tidied export lists