Opposite Sparks

Grow a same-color spark network, then trigger it with the opposite color. A single charged reaction doubles ore damage: save it for a wide chain. Aim a column and Drop spark. Same-color sparks remain; touching an opposite color detonates every connected spark. Each adjacent ore block is chipped once, regardless of how many sparks touch it. The capacitor doubles this damage and remains armed through nonreacting drops. Each color has six sparks; use at most ten total. Undo restores ore, stock and charge. No timer.