Heart-Piercer Manticore needs debugged. Everything works except the damage being dealt.
Edit: Needs changed to reflect new type of triggered ability. Instead of DoIfCostPaid, it is DoWhenCostPaid. It's ETB trigger goes on the stack and you don't pick a target. If you decided to sacrifice a creature, then a second trigger occurs and you pick the target creature or player.
Release notes
I don't believe anyone has implemented the rule change regarding split cards, unless I missed it. Split cards no longer have two sets of characteristics when they are not on the stack. For example, Destined // Lead is an instant sorcery that is black and green with a CMC of 4BG. If you cast one half of of a split card, the CMC is just for the half that is on the stack, but everywhere else it is the total of both halves. So no more Kari Zev's Expertise tricks with Breaking // Entering or Goblin Dark-Dwellers casting Bust from the graveyard.
Approach of the Second Sun needs a little adjustment, or perhaps Jace, Architect of Thought. I used Jace's ultimate to cast my opponent's Approach (making sure it got put into my opponent's library on resolution - it did), then cast one from my hand. The one from my hand should have won the game. Cast another from hand and did win then. Guessing it checks for "cast from hand" clause in the watcher (should only check from hand to do win condition, not counting times cast), but maybe it is something wonky with Jace instead.
Edit: It worked casting Approach of off Aetherworks Marvel and then a second copy from hand, so I guess the issue is with Jace casting an opponent's Approach.
馃嵕 we did it!! 馃拑 all cards implemented
Updated post on Heart-Piercer Manticore - needs a new type of trigger implemented.
ApproachOfTheSecondSun is wrong in its implementation. It uses watched with key = ("approachOfTheSecondSunWatcher" + source.getControllerId()).
Why it's incorrect? Because you should be able to cast two different ApproachOfTheSecondSun in a row and still win (e.g. you have two ApproachOfTheSecondSun in your hand and have a lot of mana the same turn or turn after another).
It should be game level watcher that tracks amount of cards named "Approach of the Second Sun" cast by playerId.
Also, Approach of the Second Sun should verify that it is cast from the hand.
Ahn-Crop Champion is untapping itself when it exerts (it says "untap all other creatures you control"). Would fix it myself, but I'm not exactly sure why it isn't working!
Fixes to Approach of the Second Sun added.
Ahn-Crop Champion (and Combat Celebrant, same issue). Fixed. It turns out that AnotherPredicate only actually works with Targets, not static abilities / one-shot effects.
well done everyone! separate issues for separate well... issues!
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馃嵕 we did it!! 馃拑 all cards implemented