Theres the typical spot removal in things like Path to Exile and Swords to Plowshares, but also a few specific interactive pieces that are worth highlighting
Whatever the case, none of these themes mesh all that well with Green
It works well with artifact reanimation effects to loop powerful ETBs like Portal to Phyrexia
Jidoor, Aristocratic Capital has an ability that mills half a players library tacked to an adventure, and if you have some ways to return lands from the battlefield to your hand, you can make a pretty good combo (Fear of Isolation, Kor Skyfisher)
Lots of design space left for equipment, so look for them in an upcoming set
Some LGSs that run tournament casual Commander nights (which is a far better oxymoron than jumbo shrimp) restrict the number of proxies you can have to keep things fair, and Im sure there are pods that condone proxies under specific circumstances only