From the DelveRush Wiki · Exploration
Overcharge asteroid core
Overcharge is an asteroid core result with a 20 percent chance.
Overview
Overcharge is one of three asteroid core results. Its base chance is 20 percent.
Result
Material: Diamond Block
Reward: +50% asteroid Coin rewards for 90 seconds
Grade interaction
Resource grade changes the listed result where the reward includes grade values. It does not create unlimited Core scaling.