High Voltage: Overdrive Decks & Guide

High Voltage: Overdrive, or HVO, is the high-energy chaos cousin of vanilla High Voltage. Matches run 4 turns with 8 Charged cards shuffled into your deck at minus-1 cost and plus-1 power. The Arc Reactor grants 2 to 4 Max Energy before each of the first 3 turns (turn 4 adds none). After 5 total Charged plays across both players, the Reactor explodes with a global effect. SnapComplete tracks every run. 3 High Voltage: Overdrive events have run since the mode launched.

How High Voltage: Overdrive Works

HVO compresses Marvel Snap into 4 turns of rapid escalation. At game start, 8 of your deck's cards are marked as Charged, each gaining minus-1 cost and plus-1 power. The Arc Reactor replaces the Cube: before each of the first 3 turns it awards both players the same 2 to 4 Max Energy, stacking across turns. By turn 4 you'll have at least 18 total energy to spend, often more.

The signature mechanic is the Reactor Explosion. Once 5 Charged cards have been played across both sides, the Reactor triggers a big board-wide effect pulled from a rotating pool: destroy low-power characters, give all Charged cards plus-5 Power, or transform them into brand new cards. The specific effect varies per turn and per event run, so no two games play the same.

HVO has no Cubes and no snapping, so there's no ranked stake. Wins and mission completions pay Volts, the mode's currency, which spend in the HVO shop on variants, avatars, borders, and other cosmetics. From the January 2026 run onward, HVO also ships an 800 Gold Premium Event Pass with extra Volts and bonus rewards.