The big issue is that I think you'd have to revisit the way in which he does the cloning - here copying power and toughness but nothing else - so as to not cause issues with the reserved list
By the way, in my research for this, Kelly Digges at mtg.com did his own mathematics with a postal scale, and when I calculated out his result, he had 1816 grams
After all, this game has been relevant for more than 25 years
My Laughter Echoes Ongoing Scheme (An ongoing scheme remains face up until it's abandoned.) Whenever you set a non-ongoing scheme in motion, you may abandon this scheme
Central Elevator's ability lets you search your library for any Room card that shares a name with a Room you control on the battlefield, checking only the names of unlocked doors
Keep in mind, that you can only have 4 copies of special energy