金钱价值(参考lolwiki道具素质价格)
1% cdr = $30
1 魔穿 = $34.3
1 物穿 = $40
5% cdr = $150 + 上限+5%
(3+0.3/lv)双穿 = $223 + $22.3/lv
(3+0.3/lv)魔穿 = $103 + $10.3/lv (5等追平)
(3+0.3/lv)物穿 = $120 + $12/lv (3等追平)
双穿胜
符文价值(取最便宜之符文来比较)
1紫 = 2.81颗小符文(取最超值小符文之平均)
1% cdr = 0.4 紫
1 双穿 = 2.72 红 ((1/0.9+1/0.62)/(0.9+0.62)=1.79)
1 魔穿 = 1.15 红
1 物穿 = 0.78 红
5% cdr = 2紫 = 5.62
(3+0.3/lv)双穿 = 5.37 + 0.54/lv (红)1等打平
(3+0.3/lv)魔穿 = 3.45 + 0.35/lv (红)5等打平
(3+0.3/lv)物穿 = 2.34 + 0.23/lv (红)14等打平
双穿胜
结论：
双穿(预知)－混伤一波型 (前期赢线、6等一套带走)
CDR (智慧)－纯伤技能型 (算血、操作有自信，少一点伤多5%cdr)
Ex: Lv6 齐勒斯 (此时双穿4.8)
Q 7 W 14 E 13 R 130
5%cdr Q 6.65 W 13.3 E 12.35 R 123.5
减少 0.35 0.7 0.65 6.5
两者效益，端看个人理解与操作