Powerburst of masterstroke (4)

Powerburst of masterstroke (4) is a members item, with a high alchemy value of 240 coins. No shop sells Powerburst of masterstroke (4) and no monster drops it, so an Ironman makes it: it takes 108 Herblore and gives 1,350 Herblore XP, using Powerburst vial, Primal extract, 3 × Runite stone spirit, 3 × Necrite stone spirit and 2 × Bottled dinosaur roar. There are 2 other recipes below.

“4 doses of a Powerburst of masterstroke.”

MembersTradeable (not for Ironmen)High alch 240 gp

Updated 9 October 2026. Sources from the RuneScape Wiki's drop, shop and recipe data (CC BY-NC-SA 3.0), checked 2026-10-09. Item sprite © Jagex.

Ironman verdict

Where the materials come from: Powerburst vial (sold by Jatix's Herblore Shop for 5 coins); Primal extract (made with 90 Herblore); Runite stone spirit (dropped by Cockroach drone (level 4)). Making ten takes 10 × Powerburst vial, 10 × Primal extract, 30 × Runite stone spirit, 30 × Necrite stone spirit and 20 × Bottled dinosaur roar and gives 13,500 Herblore XP. Reaching level 108 Herblore takes 31,777,943 XP in total; the Herblore calculator counts the actions and materials to any target, and the Herblore guide has the Ironman training route. Powerburst of masterstroke (4) is members-only. It is tradeable on normal accounts, but an Ironman cannot use the Grand Exchange or trade for it, so the sources on this page are the whole list. High Alchemy turns one into 240 coins.