Talk:The Wandering Tales of Shana-oh/@comment-28137023-20160601120022/@comment-28209103-20160604115051

yeah, it's useful for counter-attacking if use a crit party and fighting against boss or strong enemy, you should focus on the 20% quick up boost when the owner died instead of the 10% boost trait, the goal is one time damage burst using NP, just built your NP hold it till the boss want to use his NP, switch with the sacrificial lamb equiped with this CE's (any servant with taunt, preferably Matthew as guarantee for AoE, then release the NP as counter attack.

at least this is how I used this card, using a lot of sacrifice to make boost Jack NP each time