Perhaps every turn it is losing ATK it produces 1 as it lets off steam.
Now that's an interesting idea...
I fully support this idea, however, it may make the card a rare. This makes a nice synergy with Fire and Water, and enforces the synergy with Water and Air, AND it also allows some more synergy with Fire and Air, allowing an effective trio-deck of
. Steam Machine, Unstable Gas, Congeal, Ice Shield, Firefly, Explosion, Firestorm, Rage Elixir, etc.
I could already see a deck that used Water Towers, Mark of Fire, and had Elite Fireflies to make
quantum. SoRs would work nicely, too.