※ 引述《dt8712 (阿肥)》之铭言：
: 如题
: 这样死哥开R的话
: 是五只英雄取四个附加额外伤害吗??
: 还是某只英雄旁边弹四个目标
国外有玩家测试过了
http://www.reddit.com/r/leagueoflegends/comments/2yskwz/ludens_echo_karthus_interaction/
Luden's Echo cannot bounce more than once.
Luden's Echo prioritises the first pick (press tab it's the first champion on
red team)
Luden's Echo hits invisible targets
Luden's Echo when hitting minions also hits invisible targets.
Luden's Echo does not proc on Karthus E or W.
Karthus E does not add "20" to the Luden's Echo Counter.
对死歌来说：
卢登只会触发一次
卢登触发的目标是按ＴＡＢ第一个对方玩家
卢登效果会命中隐形目标
卢登命中小兵时也会间接打到隐形目标
卢登不会被死歌的ＷＥ触发
卢登在使用死歌的Ｅ之后不会触发＋２０能量