* no need to specify mana cost, just add cost
* handle all mana costs through addcost method only
* eliminate another constructor
* more constructor cleanup
* simplify LoyaltyAbility constructors
* remove unused constructors in ActivatedAbilityImpl
* cleanup
* remove null rule setting
* another unused constructor
* fix escape ability reminder text
* escape text adjustment
* simplify Trigons, remove Costs constructor
* rework Villainous Ogre, remove another class and constructor
* fix test using wrong text for trigon ability
