Having a solid plan for sideboarding is important for three reasons: You identify which cards you will be taking out and putting into your deck , as swapping out the wrong cards could greatly hinder your deck's ability to function
After rotation, some decks emerge even stronger, forming better synergies with new cards, despite losing some important ones
If the players in your group are fine with you using printed proxies, perhaps after a rule 0 discussion, then read on
Crush Hand fits green flavor perfectly, and while direct damage isnt particularly in flavor for green, it is for red, which is what the card checks before doing damage
Definitely try giving Eris the lead role in Quick Draw once Outlaws of Thunder Junction drops later this month.
For example, Hand of Silumgar can take out a beefy Vastwood Gorger