This version of Elesh Norn is the exceptionally oppressive powerhouse that gives all your creatures +2/+2, and your opponent's creatures -2/-2
That covers every printed variant reverse holofoils, secret rares, and the special-art chase cards numbered past 189/189
Needless to say, this deck can quickly get out of hand
Its first effect is exactly equal to an Act on Impulse, but the second is more comparable to a Mana Geyser in the right context
The Flamberge's steep cost of needing an additional discard makes this tech most suitable to decks that really like cards in grave or have access to virtual card advantage, like Turbo Chaos or Bazoo Return
While the four-mana cost might seem expensive at start, this card is mostly aimed at playing into the later stages of the game when you already have a board