Cross-Referencing Spheres

Normally, effects involving two or more spheres have their difficulty keyed to the highest sphere level involved.

Player: Mind 2 Corr 2. Get everyone in the crowded theater to calm down. I'll talk to them while I cast, to make it look less out-of-left-field.

GM: Highest sphere = 2, coincidental = 3, difficulty 2+3 = 5. Roll 'em.

If a player is using spheres to gain information, and explicitly requests a cross-reference of spheres, then the difficulty is increased by 1 for each sphere beyond the first. In return, it becomes easier for the player to spot things involving multiple spheres, compared to using those same spheres individually, or in a non-cross-referenced combination.

(Here's a classic suggestion from a Technocrat elsemu*, and an example of the type of results they might get. DimSci is Dimensional Science, the Technocracy's politically-correct name for Spirit.)

Player: Life 1, DimSci 1, Entropy 1. Tell me everything about this xenodimensional creature, particularly how to kill it.

GM: Highest sphere = 1, coincidental = 3, extra spheres = 2, difficulty 1+3+2 = 6. Roll 'em.

(Player rolls 1 success)

GM: You recognize a characteristic weakness in the bone structure of its upper nose. One hard punch there, and it'll go down like a sack of wheat.

(A non-cross-referenced roll, DimSci 1 + (Life 1 and/or Entropy 1), might require 2 or more successes to get the same level of information.)

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