Since you mainly study cold thorn, of course, you should study ice magic and spiritual magic. Reduce CD time: 1. Don't eat the magic rune stone desperately, but balance the CD time and the difficulty of playing strange things. 2. Strong encouragement of the spirit system is the most effective (1 level strengthening can further shorten the time of the ice system). 3. crystal skin (lasting effect) level 3 enhancement can also reduce the time of ice demon CD. The other most important thing is to rely on your equipment and make as many holes as possible.