Tutorial/Electric Conduction?

In some places, you will find this mysterious combo of mechanisms: the Discharge Stone and the Cumulation Stone. The former shoots a harmless electric current at characters and monsters affected by Electro while the latter absorbs the electrical energy from the Discharge Stone. Sometimes you will also find Relay Stones, which conduct the current released by Discharge Stones.

Subtle differences between Cumulation Stones may affect the quantity of current they require.