Ruby has the highest density of cards that interact directly with opposing characters, making it a great choice for controlling the flow games and a perfect complement to amethyst
Protect high-lore characters like Atitaya Fang General, Cri-Kee Lucky Cricket, or valuable characters like Mushu Your Worst Nightmare, as the Evasive this gives last until the start of your next turn aka for your opponents turn too
(Treat them and anything attached to them as though they don't exist until your next turn.) Instant Pollen Remedy KickerSacrifice a land
It does a little bit of everything, gaining life so you can stabilize, producing mana, and even putting a clock on your opponents
With Zinnia, every creature cast can have an itty bitty baby (basically a token copy but with power and toughness of 1/1)
The idea was that the longer you sang the song, the more you built up your magic