* refactor: added helper emblems instead rad counter's inherent emblems (use initGameDefaultHelperEmblems to define new card hints or other fake objects);
* refactor: added card hints support for emblems, planes and other command objects;
* GUI: added storm counter as default card hint (use hints tool to see it, closes#12360);
* added function for casting spells with specific attributes from a selection of cards
* updated cascade to use new method
* refactored various cards to use new methods
* added TestPlayer method
* fixed a small error
* text fix
* broke out some repeated code
* added missing notTarget setting
* add additional retain zone check
* some more cards refactored
* more refactoring
* added interface for split/modal cards
* reworked spell casting methods
* reworked multiple cast to prevent unnecessary dialogs
* fixed test failures due to change in functionality
* add AI code
* small nonfunctional change
* reworked Kaya, the Inexorable
* added currently failing test
* added more tests
* updated Geode Golem implementation
* fixed adventure/cascade interaction, added/updated tests
* some nonfunctional refactoring
* added interface for subcards
* [AFC] Implemented Fevered Suspicion
* [AFC] Implemented Extract Brain
* [AFC] updated Arcane Endeavor implementation
* [C17] reworked implementation of Izzet Chemister
* [ZEN] reworked implemented of Chandra Ablaze
* additional merge fix
* [SLD] updated Eleven, the Mage
* [NEO] Implemented Discover the Impossible
* [NEO] Implemented The Dragon-Kami Reborn / Dragon-Kami's Egg
* [NEO] Implemented Invoke Calamity
* [AFR] Implemented Rod of Absorption
* [VOC] Implemented Spectral Arcanist
* [VOC] added additional printings
* [NEO] added all variants
* [SLD] updated implementation of Ken, Burning Brawler
* Now human player uses same code for playable abilities search as test framework (old version used different code, so it could not work in one of the modes);
* Split cards - improves playable highlights;
* Split cards - fixed that it doesn't work with dynamic added abilities like flashback (#6327, #6470, #6549);
* Aftermath Ability implementation complete (At least until we see comprehensive rules that contradict the way I assumed it will work)
* Aftermath Card Frame rendering complete
* Normal Split and Fuse Split card frame rendering complete
* Amonket Split card CMC changes NOT made, but left for a separate commit
