Spend this mana only to cast a noncreature spell
To make them common enough to get to The Core quickly is a much bigger ask
Joining the commander-ready legendaries is a Pack Rat creature enlarged to become Rodents of Unusual Size, plus a Battle of Wits enchantment rethemed around Vizzini and Westleys own poison-drinking showdown, and a Silence instant showing Vizzini hushing Fezziks rhymes
One thing that 40k the game has that Commander doesn't really, is the ability to create your own heroes (or villains) and equip them with various wargear or abilities that belong to the tradition of those factions
Fire Lord Zuko Fire Lord Zuko brings together two strategies of playing cards from exile and going as wide as four nations can support and makes an incredibly powerful firebender that just needs allies, or any creatures, to back it up
The symbol added excitement and collectability to the game, making it popular among fans and collectors