This means if you begin building a deck for constructed play and you start with an amethyst character card you like the look of, then add an Item card from steel, you cant add an emerald card
While she had accepted my new-found obsession with its yellow mouse, she believed the cards were a waste of money since there was no guarantee which ones I'd get, and completing my collection involved buying an awful lot of packs
(There's also plenty of overlap between the clans, so your Temur deck is also likely to have some prowess creatures
Archmages Charm is extremely pushed, a solid permission spell, a good way to build card advantage for hitting land drops, and a fantastic tool against Deaths Shadow, Wild Nacatl, Goblin Guide, Pyxis of Pandemonium, Champion of the Parish, Aether Vial, Delver of Secrets, Hardened Scales, Amulet of Vigor, Benthic Biomancer, Glistener Elf, Noble Hierarch, Viscera Seer, and sometimes even Hexdrinker (just to mention a few)