With Songcrafter Mage, you get to harmonize much bigger spells, getting a lot of value, as well as a 3-mana benefit
Threshold can be hard to hit, but weve at least gotten a few direct payoffs with it (Kiora, Tersa) as well as more indirect (more and better Delirium cards) and having your mana rock be able to close out the game in a few turns aint nothing
It says that whenever you play a legendary creature spell, you draw a card. Venat is a mono-white 3/3 that costs three mana to cast, and she has great synergy in decks with a lot of legendary spells, creature or otherwise
Natures Rhythm The most interesting part of Nature's Rhythm is how well it sets itself up
One copied spell is already strong, but you can use untappers like Thousand-Year Elixir to push for more
While later turns may be less costly for your opponents, having to do away with any previous cards youre holding makes taking on Belle a very difficult decision