General Theorem of Spectromancer: Unless you are ready with a mass destruction spell, or ready to finish off the opponent, you should have stronger creatures on the board than the opponent.卡牌里的最基本原则就是：除非你预计对方的全屏毁灭性魔法即将到来，或者你准备终结对手，否则你在场的生物牌应该要强于对方的生物。
Corollary I. You should avoid being too vulnerable to mass destruction spells, which will let the opponent take the board advantage.推论1：你要避免易受群体魔法伤害，那将使你的对手占据盘面优势。
Some things you can do to help you achieve this:
1.Always move forward.
Skipping the turn is very, very rarely a good move. Meditation and similar can be ok to play, but you should consider that they cost board advantage.跳轮是非常罕见的，水1或者类似的牌还可以接受，但是你要考虑到将盘面交给对方的问题。
2. Don't overcommit.
If you already are stronger than the opponent, per the general theorem, he will have to do a move to change this. So you can relax, and you don't have a reason to risk too many resources to mass destruction. 如果你的盘面已经强于对手了，那么，他将肯定会做一些动作来改变局面，因此你要有所保留，同时别冒险将太多的资源贡献给对方的群体毁灭魔法。
3.Keep in mind which mass destruction the opponent can have. 随时关注对方可能会有什么群体毁灭魔法The most important is Chain Lightning / Flame Wave / Inferno. He always has at least one of these. 最重要的几个魔法是气8，火6，火9，对方至少有其中一个。Also, a well placed Stone Rain can be very powerful. If the opponent has played Troll, Meditation or Earth Elemental he doesn't have it. Be careful not to overcommit if he might have it, and has the mana to play it.同时，一个适时释放的土9将会非常强悍，如果对方召唤了土8，水1，土10的时候他将没有土9，小心别放太多牌如果他可能有土9的话，且他马上有能量释放了。You should also consider which special house your opponent is playing, since some have more mass destruction than others. 你也应当考虑对方特殊系，因为有些特殊系的群体毁灭魔法还更恐怖。
4.Play a variety of creatures. 在场上放置各种类型的生物，不要太单一。Too many of one kind will leave you vulnerable to the right destruction spell. 太多重复的生物牌容易被一个AOE一波带走。For instance, a flame wave / chain lightning will pretty much clear the board of creatures with 14 or less health. So if you think one is coming you play creatures that will not be killed by it, such as Water Sprite, Ice Golem, Troll etc. It might sometimes be ok to play a card with low board commitment such as Merfolk Apostate. But this is problematic, because it will lose you even more board control.举个例子，火6/气8不但能清盘，还可以造成14点以下的伤害对方本体。如果你觉得有一种AOE即将来临，你将放置一些不会死于此AOE的生物在场上，例如水2，水4，土8。甚至有时候出水3也可以，但是那样你盘面丢的更加快。In a similar way playing a lot of mid-level creatures (Troll, Turtle, Holy Guard, Minotaur Commander) will make you vulnerable to larger mass destruction spells such as Stone Rain or some special house spells . 同样的，放置一些中等生物，如土8，水7，神圣3，火7，将会使你容易受到土9，或者特殊系的魔法攻击。Filling the board with large creatures is often less risky. But you should still watch out for Poisonous Cloud, Drain Soul and Blood Ritual.在盘面上放置大生物通常风险性小很多，但是要小心死亡2，死亡7，死亡5.
5.Play your own mass destruction right.在合适的时候放你的AOE魔法This is done by considering the general theorem.
Assuming you are not rushing, this means you should play it either when:- You are behind in board control, or the opponent is ready to play his mass destruction, which will put you far behind in board control
- When it can save your own creatures from dying, thus giving you additional board control on top of the primary effect.
You should be careful about:- Playing it when you are even or ahead in board control. This will make you very vulnerable to global destruction such as Stone Rain or Acid Rain.- Saving it for when the opponent is far ahead in board control. You risk never catching up, if, for instance, your opponent plays a Golem or Phantom Warrior.

大赞翻译帖！Wiggin永恒经典的教材啊。