
One of the best, if not the most versatile customisable card in the set for support investigators. By itself, it's: pay a card and an action to give you +1 to a relevant stat for your next 8+ actions, which is a more than decent value for a level 0 card. But things go crazy if you combo the different mods together later on:
If you play with highly specialized investigators (5 in one stats, below average in the rest), you can permanently give them a +2 against the mythos with "Shifting ink, Subtle Depiction, Vibrancy, Eldritch ink (2)". You choose mind + foot as selected skill. Round start: they have some treacheries involving tests with those two stats, and when their turn start, they just use the Subtle Depiction effect and ignore the negative effects on fist and book. Since they never consume their charge, the asset is basically permanent. Or if they have to pass a specific test during their turn, they can still keep the +2 and apply -1 to their main stats to do whatever they want to do.
Else, if you play with flex characters (generally survivor & rogues who hit between 4 & 6), you can still give them +1 to fist + book & use Macabre depiction, so they are virtually have an endless supply of charge, as long as they draw one symbol a turn. And that +1 is often the difference for those flex characters to reliably pass any tests they get.
Imbued Ink is the only mod you'll probably never take, except for Akachi if you plan to instantly discard it for 6 resources. Body assets are rare and not often that useful late in the campaign, since they are too comboish, or cost too much for what they bring. However, arcane assets tend to be more relevant no matter your class for the last few scenarios.
At worse, it's a 0 cost asset that is a fodder against bad treacheries & investigators' ability (dexter). Give it a shot.