Card
Electro, Assaulting Battery
Mana cost {1}{R}{R}
Legendary Creature — Human Villain 2/3
Flying You don't lose unspent red mana as steps and phases end. Whenever you cast an instant or sorcery spell, add {R}. When Electro leaves the battlefield, you may pay {X}. When you do, he deals X damage to target player.
No bracket restriction: playable from bracket 1. Part of 26 known combos. 4 official rulings.
- Commander
- Legal
- Printing
- Rare · SPM · #76
- Cheapest printing
- €4.13
- EDHREC salt
- 0.86
- Color identity
- Red
- Keywords
- Flying
Bracket
- B1 Exhibition — allowed: No restriction at this bracket
- B2 Core — allowed: No restriction at this bracket
- B3 Upgraded — allowed: No restriction at this bracket
- B4 Optimized — allowed: No restriction beyond the banned list
- B5 cEDH — allowed: No restriction beyond the banned list
Why
- No Game Changer, mass land denial, extra turn, tutor or two-card combo
How Lotus Vault estimates a bracket
Bracket: Lotus Vault analysis, with Commander Spellbook flags
Combos
26 known combos.
- Sozin's Comet + Aggravated Assault + Electro, Assaulting Battery
Produces: Infinite combat phases, Infinite red mana, Infinite untap of creatures you control
View on Commander Spellbook - Avatar Roku, Firebender + Aggravated Assault + Electro, Assaulting Battery
Produces: Infinite combat phases, Infinite red mana, Infinite untap of creatures you control
View on Commander Spellbook - Firebending Student + Aggravated Assault + Electro, Assaulting Battery
Produces: Infinite combat phases, Infinite red mana, Infinite untap of creatures you control
View on Commander Spellbook
Combos: Commander Spellbook
Rulings
- 2025-09-19 · Wizards of the Coast
Electro's last ability triggers without requiring a target. You choose the value of X as that ability resolves. If you pay the mana, a second "reflexive" ability triggers. You choose the target for that ability at that time. Players can respond to the reflexive triggered ability as normal, knowing the amount of damage that will be dealt as that ability resolves. - 2025-09-19 · Wizards of the Coast
If a red mana you add has certain restrictions or riders associated with it (for example, if it was produced by the last ability of Arena of Glory), they'll apply to that mana no matter when you spend it. - 2025-09-19 · Wizards of the Coast
You can keep unspent red mana indefinitely while Electro is under your control. That means if you add a red mana during one step or phase, you can spend it during a later step or phase, or even a later turn. You will still lose other types of unspent mana as each step and phase ends. - 2025-09-19 · Wizards of the Coast
Once Electro leaves the battlefield, you have until the end of the current step or phase to spend whatever red mana you have before you lose that mana as normal. There is no penalty associated with this other than the loss of the mana.
Rulings: Scryfall · Wizards of the Coast