Okay, I'm still trying to figure out exactly how Olive works. Particularly how you resolve two tokens on a single action/test. Does this mean effectively the test/action happens twice? It's the only logical conclusion I can reach but it doesn't seem quite right. Seems a little overpowered. If that's how it works you could get two uses of a powerful spell card like an upgraded Rite of Seeking or Shrivelling by only spending one charge and one action.

No, you basically combine the effects of the 2 tokens into 1 effect.

11 minutes ago, C2K said:

No, you basically combine the effects of the 2 tokens into 1 effect.

As in, you draw a -1, +1, and [Cultist], you then choose 2 of the tokens to resolve, so -1 & +1 for a total modifier of 0.

The "resolve" here is for the chaos tokens, not the skill test. As already stated, resolve means adding together the chosen tokens' modifiers and effects.

Of particular note would be if you drew, for example, [skull], [skull], [cultist]. In that case I believe you would have to resolve the effect of the skull token twice or the effect of the skull token and the effect of the cultist token. One, both, or neither may depend on the final outcome of the skill test, which is determined by adding their modifiers together.