-
You can manage & track your card collection and decks once you create an account and login.

I have 4 cards in my hand and my opponent has Decepticon Shockwave in Bot mode. If they play Brainstorm > System Reboot > System Reboot, do I take 4 damage after each System Reboot or 8 damage after Brainstorm is resolved?

Shockwaves ability will trigger a total of 8 times. Each of those abilities resolves separately, so essentially you have 8 damage counters to spread around as you wish.
Source: Wizards of the Coast (2019-11-22)    【Link to Ruling】
Tags: Decepticon Shockwave, Cybertron Commander