Natural and Total Triggers

Triggers in Flows conditionals determine which expression result to apply. There are two roll-based trigger types (plus Named Parameters for user-toggled flags).

Natural Trigger (n)

Checks the raw die value before any modifiers are applied.

• n20 — the die face shows 20
• n{19,20} — the die face shows 19 or 20
• n[18..20] — the die face shows 18, 19, or 20

For keep rolls like 2d20kh, the natural trigger checks the kept die’s value.

Common Uses

• D&D natural 20 crit: (n20?c)
• Champion fighter expanded crit: (n[18..20]?c)
• Fumble detection: (n1?-d4) (if your table uses that)

Total Trigger (t)

Checks the modified total after all arithmetic.

• t24 — the final result equals 24
• t{24,25} — the final result is 24 or 25

Common Uses

• Hit AC threshold: (t15?...) — only chain damage if total meets AC (future consideration)
• System-specific thresholds

In Triggers

Trigger	Checks	Example
n20	Raw die face	Critical hit
t24	Modified result	Meets specific threshold
<adv>	User toggle	Named Parameters
s<gwm>	Inherited toggle	Named Parameters

See also: Flows, Notation Spec, Named Parameters