If you are new, the easiest way to avoid mistakes is to build in a deckbuilder that enforces color identity
Much like the old scourge of Standard, the Meathook Massacre, it's a pseudo-boardwipe with an upside every time a creature dies
There are also a couple one-off elder dragons: Modern Horizons 2 printed Piru, the Volatile as the first wedge tri-color elder dragon, and Final Fantasy Commander brought us Hraesvelgr of the First Brood
(9/19/2025) The mana value of a modal double-faced card is based on the characteristics of the face that's being considered
Im honestly surprised they dont ship older booster boxes worldwide like other companies around the world whenever WotC releases a set like War of the Spark or Strixhaven with Japanese alternate art cards, theres a strong demand that tends to hold even years after release
Storm Slayer, they may become color staples for the foreseeable future