
All artifacts have "At the beginning of your upkeep, sacrifice this artifact unless you pay {2}."
Energy Flux has 14 printings, first in Summer Magic / Edgar (1994). EDHREC ranks it #15,187 among Commander cards. It appears most in Zur the Enchanter decks (1,410 on EDHREC).
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.