Azusa, Lost but Seeking (271k, $8/$30) If you like the Miku art better, or the other Secret Lair version from Tsubonari, I respect your choice, but theres blessed little full-art printings like this that are so ethereal and lovely
Spreading -1/-1 counters is very easy as well
Cutting Downfall promoted being more aggressive, which put me on Stormbreath Dragon, this demanded a rework of the manabase, which put me as a base R/W deck with black being the lighter splash, instead of being this Thoughtseize based grindy deck
Kiora, the Rising Tide is a draw spell on legs
There are loads of ways to build up a nasty battlefield overtime
Until then, make it a point to learn about one new Magic card per day to keep expanding your Magic: The Gathering knowledge