I’d quote an ancient meme for this skill, but I don’t feel like it. Pen Name - Silk Patterned Octopus B rank is a simultaneous 3-turn Arts booster and “When you crit, you can crit harder” skill, giving Hokusai Saber a 20% critical damage buff every time she lands a crit for 3 turns, being able to gain the effect for 3 turns. So to condense that down, she can in an optimal situation get +100% crit damage for a turn or two after having used all her cards from a given 3-turn card cycle.

If you plan out like a mastermind, you may be able to get more than that by using the skill before a new card deck is drawn at the end of the 3-turn cycle…

Actually, I should probably explain what I’m talking about briefly - each servant of the frontline of three servant has their card hand of 5 cards, like Hokusai’s BAAQQ, is added to a deck of 15 cards, which has 5 drawn out of each turn to form the command card hand you get. This means that only 5 attacks can be made by each servant over the course of 3 turns.

Using this, we can know that assuming Hokusai uses this skill turn 1, she can get a maximum of +100% crit damage before the duration wears off. This can be extended further if you get ‘lucky’ and get no Hokusai cards on the first turn of a cycle, allowing you to pop it on the second turn and potentially get up to 8 procs of this skill by drawing 3 Hokusai cards on the next cycle in addition to the 5 from the first one.

But I digress - assuming you use all 5 of Hokusai’s cards in a given cycle and they all crit, this skill averages out to 40% crit damage up over those 5 cards, which then may increase depending on how many Hokusai cards you get following the first cycle (as the crit damage buffs last 3 turns individually, not the duration of the initial buff to get those crit damage procs.)

This is all very confusing to comprehend out the gates, so just know you shouldn’t use it if the turn number is (3n-1), such as turn 2, 5, or 8, and you’ve already drawn a lot of Hokusai cards last turn. Otherwise, have fun critting and seeing all those buff markers on her.

And there’s the Arts buff, too. That’s pretty good, I suppose.