Note: Unfortunately, CFB, like many other major Magic content sites, has struggled with site migrations, so accessing older resources can sometimes be tricky (as they werent carried over)
A very easy recommendation
Riveteers Charm is begrudgingly playable, though I would want sacrifice payoffs and a low curve, because otherwise it might just be better to play Rakdos Charm
Without these safeguards in place, older cards can often become huge problems for modern competitive play, especially because newer cards will have to abide by those restrictions a lot more consistently
(Green and Red Starter Deck)
This four-drop 2/2 Izzet colored legendary leader will let all of his casts of stuff with a cost greater than our experience counters count get another