* Game: added multiple cards/effects support (old version supported only 1 effect per game);
* Game: added combo support with split and adventure cards;
* AI: computer can see and play cards with dynamic added alternative cost (like Bolas's Citadel);
* UI: users can see playable cards with alternative cost.
Replaced all instances of "her or she", "him or her", and "his or her", with "they", "them", and "their", or sometimes "that player". Updated verbs where appropriate.
* Fixed Rankle's triggered ability
Any number of available modes can now be selected, including zero.
* Update AbilityImpl.java
* getTargets now returns empty Target for null Mode
Reverted null Target check changes in StackAbility.
* Update HumanPlayer.java
Suppress the pass with mana in pool question when activating a macro with mana in the pool.
For example now you are able to make a macro producing mana with Devoted Druid and Vizier of Remedies.
- replacing hard coded strings of set codes with reference to 'mage.sets.<set>.getInstance().getCode()' allows for set class names to no longer show as unreferenced & adds for more consistence between other block units
- various protected variables were able to be changed to private to clean up additional warnings
- some JavaDoc comments were generating warnings due to missing documentation
- removed some unused imports and unused variables
- there were multiple conditional logic checks for 'rarity != Rarity.LAND' within an if block where the outer condition was 'if rarity == Rarity.COMMON' rendering the inner condition always true and thus redundant
- a few ExpansionSet.buildDate parameters wer using octal values (eg. '03' instead of '3') which triggered some warnings
- added a booster generation test for WarOfTheSparks to make sure every booster contains a planeswalker
- added a booster generation test for ModernHorizons to make sure every booster contains a snow land
- booster generation test for Battlbond set referenced the Coldsnap set class instead of Battlebond
