Goblin Haberdasher somehow makes it so that your creatures that are seen wearing a hat get Menace, a very useful ability that forces players to assign at least two creatures to defend against an attacking hat-wearer if they want to avoid damage
If this is the case, we still have a problem, but the problem is much bigger than FNM promos themselves and more about set design in general
The frog's lily pad hat takes the cuteness cake
The key to making a set care about a particular card type is to get the as-fan of that type up, and including it on creatures is an easy way to do that
With a few major exceptions, like not preventing activated abilities, Voice of Victory is very much like the staple Grand Abolisher
In conjunction with Lost Caverns of Ixalan 's Zoetic Glyph, it can attack for five on turn three--or, in older formats, be the target of an Ensoul Artifact and attack for five on turn two