Tremble

Jorbs

This card is like Bash-. For one more energy, you could deal an extra 8 damage, and you'd just have one of your Starter cards. The Starter cards aren't typically thought of as very strong, so putting a card that's usually worse than one of them into your deck isn't very exciting. The place where Tremble might do well is if you end up with some Vulnerable synergy stuff. Sometimes that can happen even with weaker cards, since Slay the Spire 2 has Transforms and other random ways to add cards to your deck.

Baalorlord

Easy way to get vuln for cheap, very nice if you have big expensive attacks. Cheap way to get a card in the Exhaust pile for related synergies.