Since +1/+1 counters are easy to come by youre really just worried about giving Skullbriar trample and other keywords
Of course, you need your own creatures in play to fight something, but that wont be difficult for a green deck to achieve
In fact, Goblin Engineer can operate as a self-contained engine, particularly when employed to swiftly place budget-friendly artifacts into play, showcasing its adaptability and utility within artifact-focused strategies
However, through trading in combat or board wipes our momentum can be stalled if we dont have the cards to rebuild ourselves
The difference is that the storm keyword counts every spell type you've cast thus far this turn (including permanents) while Thousand-Year Storm only cares about instants and sorceries
My head is now on swivel for this card to crash in price immediately, and I will be looking to pick up foils on the cheap in case it ends up making a splash in Modern (via aggro, Ensoul Artifact or BW tokens builds) or Frontier continues to grow (where it may be safe for now given the unsanctioned nature of the format and some folks desire to make use of their copies.) Reflector Mage is a very odd choice that WoTC explained was necessary to ensure U/W Flash didnt run rampant in the format with the other bans on the table