It's an even more narrow category of cards than arcane, but traps want to be played at instant speed, and the Snare is itself an instant, so it sets them up nicely
Just think of the Eevee from Twilight Masquerade, for example, which is one of the most expensive cards of the year
If your opponent is playing card effects that prevent them from taking Battle Damage, the effect of this allows it to conduct battle while bypassing your opponent's immunity, although since it only has 700 ATK points, it's unlikely to pose any significant threat
Its Excited Heart Ability allows it to attack for one Colorless Energy less for each Prize Card that your opponent has taken
How Many Board Wipes Should I Have in Commander
If you do, untap Slicer, goad it, and it can't be sacrificed this turn