Did the other reviews already tell you this thing is good? This thing is good.
This is, undisputably, the best card in Innsmouth. Yes it's "weaker" than some of the 4+ xp cards, but seriously, the safety, speed, flexibility, this card does sooooo much work that you're straight up spoilt for choice.
First off. This thing fights. characters typically rely on charges for fighting, which mean's that the wrong health total (say, a 3 health foe when you have a Shrivelling, or a 4 health foe when you have a Shrivelling) is doubly expensive to deal with. The staff helps with that. It also means you can routinely knock out a 1 health foe like Acolyte.
Second. It evades. Getting away from a Hunting Nightgaunt or similarly large monsters or unwinnable fights is key, to buy time for when you can actually beat them later. Or just to conserve other fight resources.
Third, it's responsive. The round that you play this thing you get extra power! For that one turn you can do 2 damage if you attack twice, evade 2 enemies, or get two chances to do one of those things once.
Lastly, there's combos! Dexter Drake has that innate ability to play it as a free action, effectively netting a free action attack/evade, there's also Sleight of Hand which can do the same.
All in all, this card is so good that I frankly question any deck for a 5 that doesnt include this thing.