9 Master Transmuter An extremely versatile creature, Master Transmuter lets you swap the artifacts you have in play with those in your hand, getting around the need to pay for high casting costs and the chance of your opponents countering your spells
In fact, many of the best stuff running around is oriented toward the big side (Stoneforge Mystic, Restoration Angel, Teferi, Mage of Zhalfir, Consecrated Sphinx, Vampire Nighthawk, Gray Merchant of Asphodel, Feldon of the Third Path, Azusa, Lost of Seeking, Silklash Spider, Courser of Kruphix, Prophet of Kruphix, Brago, King Eternal, Kuldotha Forgemaster), and thats in addition to creatures specifically designed and included for defense like Walls and other cards with defender
We've pushed all of the starter decks from those sets to the bottom of our rankings, because they're not a suitable way to start playing Lorcana's main format
If Bruse Tarl and Ishai are your commanders, your deck may contain cards with red, white, and/or blue in their color identity, but not cards with green or black