"...then discards 1 card at random from their hand." should let you use the action you take to mitigate the chance of discarding important card, such as just play it as that action, or take skill tests to commit valuable skill cards. Random discard can also hit weakness on hand, so you can play the other card to increase the chance.
Some reviews here don't do justice to this card. Allow me to tell you why you should pick it.
If you intend to fight or evade, it will always give you or with the added option of giving in the mythos phase if you are already engaged with your intentions.
It's a target for Resourceful unlike the likes of Overpower, Manual Dexterity, Guts, Unexpected Courage etc. Having Resourceful in your hand and no target for it in your discard pile is not fun.
It will not recycle itself like some of the aforementioned cards or be committed to a test (why would a fighter mingle with intellect in the first place?) but still, it is versatile and it might give you three icons. It happens! (It might give four icons but I do not wish that for the light-hearted)
It's a target for True Survivor unlike let's say Overpower.
It enables both Sea Change Harpoon and Silas's Net for Silas Marsh. It is actually a great card for Silas when taking into account all of the above and adding Eucatastrophe to the mix. (Eucatastrophe and Resourcefull and "Not without a fight" is a more than decent response to a crucial test)
This card has its uses. You cannot look at it in your hand and wish you had Unexpected Courage instead. It’s like looking at Able Bodied or Manual Dexterity in your hand and wishing you had Unexpected Courage. It’s a wrong way to look at it. This card is like “I am not amazing but I will not let you discredit me, "Not without a fight!"”
This card excels at higher player counts (more enemies to manage) and when you don't want to kill them (Forgotten Age). Otherwise I find it rather expensive and slow. If you think you're only going to need it once or twice Slip Away is a much better option.
Trish loves this card as it enables all sorts of shenanigans.
Search Warrant: I find this helpful in TCU bit otherwise probably not worth it. Fabricated Evidence: A solid upgrade. Blackmail: Ditto Extort: This allows other rogues to do Trish tricks. Surveil: I only upgrade this if I have extra XP (which never happens in Rogue) Expose: This one is too expensive to be really useful but it is good for removing that annoying cultist on the far side of the map.
My favourite combo with this card is with the .25 Automatic(2) or Dirty Fighting. Remotely evade the enemy and fight it in the same action.
Girish is well worth his high cost. He proves a free Unexpected Courage every round and provides self healing soak. He's amazing in a Carson deck but I suspect many other investigators will like him as well.