Goblin Oriflamme

Take the classic anthem effect and shave off everything that made it flexible. Where a card like Glorious Anthem or Intangible Virtue pumps every creature in your army whether it swings or blocks, this restricts the bonus to the attack step only: a static enchantment that rewards commitment and punishes hesitation. The +1/+0 clause is doing exactly what the name promises, an oriflamme being a war banner carried into the charge, and the design leans hard into that flavor by making the effect matter solely when creatures move forward. There is no toughness in the deal, so it does nothing to hold a defensive line; it is purely a downhill push, sized so that a wide board turns a stalled race into a lethal one. As an anthem, it also survives the sweepers that clean up creatures, sitting on the battlefield through a wrath and re-arming the next wave. The narrowness is the point: cheaper than the go-wide anthems that grant an unconditional bump, and priced as a two-mana enchantment because half the stat line and all of the defensive utility have been stripped out. It is a deliberately blunt tool for a deck whose only plan is to keep attacking.