Marked card AI playable.
Note : This also adds a new function to ComputerUtil,that checks if the AI is in danger of being killed, or if it has a same amount of life remaning - useful for future "pay life" AI decisions.
Added creatures with low power that have
-abilities that tap for something really valuable like drawing a card
-abilities that usually need to be saved until enemy turn (counter a spell, tap a creature, prevent damage)
-abilities that usually deal equal or more damage if not attacking (prodigal sorcerer, grim lavamancer)
Generally avoided abilities where activating before combat is an acceptable choice and thus the attack decision doesn't come up anyway as the AI already used the ability.
However, this behavior is unacceptable on certain abilities (mostly those with higher mana costs) which should not be used before the end of main 2 as it prevents the AI from actually playing their cards. (like Hanna Ship Navigator)
I suspect this will need quite a bit of improvement in the future but we have to start somewhere.
The AI will now not play a second copy of these cards if and only if, there is no copy of the card owned by that AI in play, except copies that are enchanted by Auras owned by other players.
Later, a better logic that actually determines whether the enchanting aura removes the relevant ability from the card or not should be added - Warp Artifact will not stop a disk from activating, but Arrest will (if it's a creature).
Note : Only add NonStackingEffect to permanents the AI shouldn't play more than one of at a time if and only if, removal of enchantment is not pontentially leathal to the AI.
For example, do not add to Ensnaring Bridge or Moat, as loss of those allows the enemy to swing with possibly accumulated large armies for likely too much damage.
Those cards will need a different logic, that avoids playing a second copy if and only if the threat the card protects from is already too dangerous.
Added plenty of DeckHints:Name$, some DeckHints:Color, many DeckNeeds:Name$
Most notably the Planeswalker Deck Into pack exclusive cards eg. [[Chandra, Pyrogenius]] and [[Liberating Combustion]]. New Policy: If a card would refer to another card, each get DeckHints:Name$ of the other.
Notes: Possible weird interactions when giving a multiblock creature an additional block eg. Equipping a Night Market Guard with echo circlet. Further study required.
- Fixed Nova Pentacle (the card needs some additional combat AI support though, or the AI will suicide its own creatures if the opponent has nothing on the battlefield).
