High Voltage (Blue)

Amp is an effect keyword.

Amp generates a replacement effect that applies to any one event of arcane damage that the player controls. This can include arcane damage events that are generated from actions, weapons (e.g. Kraken’s Aethervein), heroes (e.g. Brainstorm), etc.

If an effect would deal 0 arcane damage, it’s the same as no effect occurring, and therefore Amp does not apply to it.

For cards with an effect that deals arcane damage to multiple heroes/allies (e.g. Forked Lightning, Singe, Aether Arc), amp will only increase the damage dealt by the first arcane damage event from the effect. For example, if you target two different heroes with Forked Lightning, Forked Lightning’s effect will result in two arcane damage events. Amp will apply to the first arcane damage event against one of the targeted heroes, but will not apply to the other arcane damage event against the other hero.

If you have a melded split card that has an effect that deals arcane damage on each half of the card (e.g. Comet Storm||Shock), amp will be applied to the first available arcane damage event from that layer after the amp replacement effect has been generated. If an amp effect is active before the melded split card’s layer resolves for the first time, then that amp will apply to the arcane damage event produced by effect on the right side of the card. Similarly, if an amp effect is active before the melded split card’s layer resolves for the second time, then that amp replacement effect will apply to the arcane damage event produced by effect on the left side of the card.