It's hard to consider playing this over something like Highway Robbery that you can plot to set up a big turn or Grab the Prize which deals extra damage on its own
The card not only is from the Gamma playtest deck, but also is the precursor to a card in the Power 9 one of the nine most-powerful cards in the game and of the highest rarity in each set that they appeared in
2020-04-17 If Luminous Broodmoth dies after losing flying but not losing its triggered ability, its ability will trigger for itself
Old One Eye and The Red Terror are bulky monocolor Tyranids who pump out plenty of damage, legendary more for flavor than to mark them as great build-arounds
Although this deck could be sorted into both Brackets One or Two, I would lean towards declaring it a Bracket Two deck when you sit down to play with other players
Its entirely possible to put a Kefka combo into the UBR Kefka from the main set, and were certain folks will be jamming with this one either way