Cube was built on the premise of the most powerful cards however once I jumped into the rabbit hole of cutting the original power I simply haven't found a sensible stopping point yet and 98 - 99 seems the current focus of things worth culling
It still kept the theme of the game of only one legend in play at a time, but stopped people from holding dead legendary cards they cant cast
Bloomburrow is different, however
In terms of actual Legendary cards, however, the games designers are a little more selective, with only 12 cards making the coveted cut in Into the Inklands
ranked play, and you can literally toggle between these two
P/T Number 137 Language English Not Legal Formats Alchemy, Brawl, Commander, Competitive Brawl, Historic, Legacy, Modern, Pauper, Pioneer, Standard, Timeless, Vintage Rulings (1/19/2018) You activate X's first activated ability while X is on the battlefield under your control