Ravnica: City of Guilds wasn't the first set that catered to players who liked two-color combinations
Pulling from across the franchise of games, you look at the dive we saw during the panel below
[9] If you play nothing but tiny creatures, youll be casting underpowered creatures when everyone else is playing huge haymakers
They felt an uncommon cycle was about the size they wanted for the dragonstorms
For example, card draw (Cunning Rhetoric, Enchantress's Presence) removal (Grasp of Fate, Cast Out) and bodies (Sigil of the Empty Throne, Sandwurm Convergence)
Joo Dee, Public Servant (Sakashima of a Thousand Faces) Sakashima of a Thousand Faces always plays backup to whatever partner you choose to go with it, but what a backup