* adjust ExileThenReturnTargetEffect
* initial rework ExileReturnBattlefieldNextEndStepTargetEffect
(test coverage provided by CloudshiftTest)
* refactor some more cards
* refactor more straightforward cards
* add params and more refactoring
* text fixes
* maintain order in set
* fix Lae'zel's Acrobatics and add test
* Rework AsThoughEffect
* some cleanup of MageIdentifer
* refactor ActivationStatus
* fix bolas's citadel
* fix a couple of the Alternative Cost being applied too broadly.
* fix Risen Executioneer
* allow cancellation of AsThough choice.
* fix One with the Multiverse
* cleanup cards needing their own MageIdentifier
* last couple of fixes
* apply reviews for cleaner code.
* some more cleanup
* new feature: Emblem Cards
Allows match/tournament creator to specify cards to give each player
emblem versions of (or just the starting player for symmetric effects).
Technical details:
- new UI for specifying emblem cards (.dck files)
- available for all match/tournament types
- new class `EmblemOfCard`
- new method `copyWithZone` on `AbilityImpl` (used to make abilities
work from command zone)
- new fields on `GameOptions` and `MatchOptions` for emblem cards
- emblems are granted after mulligans, before first turn (technically
after Planechase starting plane creation)
* fixes
* defaults for emblem cards in match options (fixes quick game buttons)
* minor fixes
* use DeckCardInfo instead of Card for emblem cards options
* restore accessible parent properties
* fix images for card emblems
* look up cards in a way that preserves which art
* fix typos; make Emblem.sourceObject protected
* add descriptions to planechase and emblem cards
* fixes
* add some unit tests for known working cards
* fix author name
* add explanation comment
* fix up tests
* copyWithZone: no longer modifies zone for singleton abilities
* directly check for MageSingleton
* Combine casting Transformed into a shared SpellAbility, apply transform effect before spell is cast
* Minor cleanup
* Use effect.apply() rather than game.applyEffects()
* Add test with Maskwood Nexus
* [WOC] Implement Misleading Signpost
* moved effect to common file
* added unit test
* added battle to test
* updated effect name, fixed list of defenders
* fix test text
* added text for effect
* fixed target
* made changes as per PR comments
* added unit test for 508.7c
* implements Kharn the Betrayer
* added flavor text
* fixed test
* fixed issue with triggered ability not working
* removed diacritic
* added effect text to test
* fixed several issues as per PR comments
* fixed access
* updated Kharn to use PreventionEffect
* added unit test for control loss via other sources
