It's like a common sense in the game that barge is a terrible card for its silver label, so I think a buff is necessary. My idea is that the card could have an additional chain effect: Push 2. if the target ends the move next to other units, push 1 them aswell. (my idea is that it would be like a bowling strike). It's an original effect which brings diversity and I don't think it would be broken.
There have been plenty of topics suggesting to buff Barge But seems that BM won't balance anything existing unless they just have to. There's a list of OP and UP cards/items, Barge isn't the only one
But i think its easier to just buff a card so it can match the silver than turn it bronze and remake all the items. If they do so, they have to substitute the silver barge for any other card. They did it a couple of times, and they turned silver fireball into silver ember - as in staff of a million fireballs into staff of a million embers cuz it was so powerful and had many copies of the card. in the other hand, there are many many items with good amount of copies of barge and they are also impractical - but for the opposite reason, they're very weak
