Your ally helps before you pay for your check

Rika is preparing a Finesse check to repair a jammed portcullis mechanism. After the Guide confirms the Skill and target, Javi offers to brace the buckled housing with Athletics. Costs are ordinary and unmodified.

1. After the Guide confirms the Skill and target for Rika’s Finesse check, Rika waits without spending her dice.
2. Javi declares the concrete Assist contribution of bracing the housing. Assist is his Reaction.
3. Javi pays one Action Die for Assist and one more as Boost, within Athletics Skill Level 1. His Hit and Miss total 1, which beats Difficulty 0.
4. Javi’s two paid dice become Used. They pay only for his Assist check.
5. After Javi succeeds, Rika commits her own normal payment and rolls her own Finesse check with Advantage. His dice do not become part of her roll.

Result: Javi resolves and pays for Assist first. Rika pays separately and gains Advantage, without pooled dice.

• If Assist fails, Javi still spends his dice but grants no Advantage.
• Only one Assist attempt is permitted for Rika’s check. An Assist check cannot itself be Assisted.
• An assisting ally must be present, aware, able to act and able to offer a concrete contribution.
• Assist uses no proactive Skill use. Apply each character’s own costs, limits and Edge separately.