Nothing stops you from committing Dreams of the Deep to another investigator's test (the same is true of Arrogance by the way, which is very useful to be aware of especially in the mythos phase), so even in rounds were Silas's stats don't shine it should be possible to get rid of this. There are almost always locations to investigate and there's generally going to be someone investigating them at a decent value. It can even be worth taking 2 damage to move to them (you'll take the damage in this case because Dreams triggers at the end of your turn, not the end of the round) to give them multiple attempts to clear it. In a roundabout way, it can be compared to a double-action discard weakness.

Flashlight (or Old Keyring) also works well if you can find a shroud 2- location (and is a solid option in general for any low-book investigator to contribute to the game), as that neutralizes the effect of the negative icons.

Also note that you don't have to commit it to any given skill test. If there's only a round or two left before the scenario ends anyway, it's very possible to just tank the damage.

When deciding whether to use box-or-book signatures, it's also worth noting that this weakness gets softer the more investigators there are, as there are more people to commit it to AND a greater chance of seeing an enemy the round after you draw it.

Unlike the base version with "-" health, allowing the damage to pass through to the investigator without breaking composure, this version you need to protect it from damages as well since it has 1 printed health.

But has Leather Coat, etc. and soak Item tricks like Scavenging, I find it much easier to protect than e.g. Moxie (3) on where they tends to fail treacheries and take horror hits breaking the composure. Added with an option to spend more naturally enables more Scavenging to continue protecting it.

I found that 4 is useful in Standard since 2 shroud locations with high clues are abundant in this game. Looking through those who could take Lv. 3 , it seems only Wendy Adams is at 3 waiting for that critical +1. I have tested and it improves her neutral investigation a lot. (As well as granting 5 to be really solid against treacheries.) She can now also Scavenging without dedicating a hand slot for Lockpicks.

Something that I haven't seen mentioned yet in any discussions about this card is its cheeky interaction with her signature Weakness (which she may have up to four copies of). Drawing cards and flipping the asset are two discreet sentences and in that order. Thus, if you draw Burden of Destiny, this Discipline will still be Unbroken and a legal target for the weakness. Since it was about to flip anyways - you lose nothing further by choosing it!

The 'cannot flip back this round' clause on Burden of Destiny does mean that the second step doesn't immediately reset the asset to Unbroken, which prevents this from reaching cheese levels, but it otherwise isn't a concern as the discipline wasn't going to flip back at the end of the round anyways (on account of drawing up to 5 cards).

Nobody mentioned the level 0 combo A Chance Encounter + Calling in Favors.

2 Actions:

1. Take an ally from any player's discard pile (optionally use it)
2. Take the chosen ally to your hand and search your deck for another ally (if you find one, put the ally into play)

Later play the ally on your hand again.

Works great e.g. to replay a defeated Duke or use your/another players expensive defeated ally to get it back and put a cheaper / equally costed ally into play.

From a math standpoint you're going to need to have exiled 5 level 1 cards to break even with this card. Your gains lessen the higher the exile level is too. Basically then, this helps keep Flare and the upgraded coat/keepsake from leaving play. But again, you're going to have to get 5 total uses of those cards to even break even, and I'm just not sure thats a scenario you are realistically going to see often.