Getting the obvious out of the way; solid card in multiplayer, useless in single-player, cheap event that you'll always be able to play and rarely have a reason not to.
Now, with that said, I wish to talk about one very specific situation involving this card; the event you decide "screw it!" and subject yourself to four encounter cards in one phase. This will be a highlight of any game session, and I recommend trying it just for that reason, even if you perish in a hilarious fashion by your own hubris. In the spirit of trying to survive this self-imposed nightmare, here are three investigators who are most likely to pull it off:
1) Zoey Samaras
High ? Check. Benefits from drawing enemies? Check. Needs few cards to come online? Check. Zoey ties with Leo Anderson for highest among the Guardians, but Leo needs a few more cards out before he's ready to endure the encounter deck, and his 1 makes him slightly more vulnerable to the second most common skill test printed on encounter cards.
Most if not all Dianas will be running encouter hate, meaning that the're often disappointed when they couldn't cancel an effect because someone else drew it. No more! With the highest potential base and decent , she will be able to handle most tests that come here way. Her balanced health/sanity thresholds and access to guardian cards top off her status as most likely mystic to handle an encounter tsunami.
3) Jenny Barnes
Jenny might seem like a dubious choice to take on the mythos, but several rogue cards exist that help to this effect. Her decent and stats can be bolstered with Well Connected, or replaced with Money Talks, two cards that Jennys are already inclined to take. Tennessee Sour Mash helps both with checks AND enemies, Cunning with checks, and Jenny's Twin .45s with enemies too.