Because it's not enough to just win your next Commander battle, you have to win the right way
Due to its menace, its hard to block in the early game, and early drops that might normally keep back an early beaterlike Fog Bank, Typhoid Rats, Wall of Blossoms, or one of my favs, Black Catare going to have some serious difficultly stopping your Prodder until they have two creatures online
I could see a world where Tron starts to stretch for white mana at some point, as Krark-Clan Ironworks is both a scary matchup and a rising force in Modern, and Rest in Peace sounds like a powerful tool there, but I dont think were quite at that point yet
But red and green dont usually have trouble making a lot of mana
What are sealable inner sleeves for TCG
Essentially you get a choice of two 'sorceries' for the price of one, plus a value-generating creature if you wait till the late game