9 Moat Despite the prevalence of flying creatures in multiplayer, there are still a metric ton of nonflyers running rampant
While green can acquire eight mana relatively easily, it takes a while longer for white to gather similar resources
The card's pretty darn strong too, protecting your whole board of characters by reducing everyone's strength for one whole turn cycle
In response to anything that the opponent could play, the blue mage suddenly had not one, but fifteen different cards he could tutor for
Even in these cases though, the fact that it's only a two white mana value investment means that you will get significant value out of this enchantment if you manage to go to combat with it just once
These cards, in addition to several mentioned earlier, can close out games very quickly