They are the format you're playing, the speed of your deck, and the strategy you're trying to execute
I love the concept, but I do think it has a consistency issue compared to Witherbloom or Prismari
Punisher This mechanic, first seen in Odyssey block, is a spell where the opponent gets a choice
When its time to attack, there are plenty of Strength-boosting cards to do serious damage
If the only creatures you're running are MTG goblins, Conspicuous Snoop is a great way to do just that, letting you play goblins from on top of your library
Legendary spells are plentiful not only from the latest Lord of the Rings set but also from deep into Magic the Gathering's history, so there are a lot of cards that you can slot into this deck that would make it powerful