There are a lot of ways to be a red deck
Mickey Mouse Standard Bearer or the various Support characters can also do the same job
As for framing, well, Fire Lord Ozai has something to say about that himself: (And in admitted nitpick, it should be noted that WotC also goes with the absolute worst , least helpful citation format I have personally ever seen, choosing to identify each card by its season and total episode number, but only naming the season rather than the episode
The last super important Cubic card that supports their OTK playstyle is the Normal Spell Cubic Wave
I mean, you could just rely on Slimefoots activated ability as the only way to take advantage of its triggered ability, but whats the fun in that
Do some mana fixing by copying Urborg, Tomb of Yawgmoth or commander protection by copying Karakas as long as either of them are in a graveyard