If you can 100% keep the crown, it does good work, but 5 mana is too much for an enchantment that only deals 2 damage each turn
I considered It'll Quench Ya!, but didn't end up running it, although it might be worth playing some number since our deck is really good at playing at instant speed, making it easy to leave up a counter and still use our mana for something if we don't need to cast it
Reaper of the Wilds does a bit of everything, it can trade up well, it can be fat for cheap and dominate the midgame
However, it also happens to have two really interesting abilities
Voice of Resurgence enabled green-white midrange decks during its time in Standard, as it's a creature that discourages both killing it and even casting a spell on the Voice owner's turn
Jace Beleren With Jace Beleren you get a Howling Mine when you want it, the ability to make an individual player draw a card, or an ultimate that mills 20 cards from target player