The more powerful skills cost more to buy, but on your way to max level (45) you'll still be able to buy everything no problem. (darkstation.com)
As students become better citizens in the virtual world, so will they develop powerful skills for negotiation and compromise that serve them well in the real world. (edutopia.org)
The combat effects from using powerful skills really help users engage with the game. (news.mmosite.com)