Plants got combos, some pretty absurd combos.
If your unaware the sun engine grants you the ability go full combo from a single card so rikka builds have been very successful thanks to rikka's ability to grant the deck some more resilience to things like handtraps and it also opens up certain new branches for combos.
The new aroma support is also good, it allows for certain plays that weren't previously available and a new powerhouse link monster.
I'm genuinely interested in seeing the deck continue to evolve myself. This is a quick list I made but it could be improved in the future.