Electro, Assaulting Battery {1}{R}{R}
Legendary Creature — Human Villain
RedCommander: legal
Identity
Red
EDHREC rank
#1,261
Cheapest printing
US$4.17
TCGplayer
Printings
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.
Keywords: flying
Every printing
highest TCGplayer market first; a card with only a thin single listing shows its low
In short
A Commander deck is a commander and 99 other cards, one copy of each (except basic lands), all inside the commander's colour identity. Paste a full list into the deck price calculator to price it and check it against the format.