match are the simplest ones
I was intrigued by the idea of showing cards from your hand to express a typal theme
Multicolor Boros Charm Unflinching Courage Aurelia, the Warleader Ayli, Eternal Pilgrim Drogskol Reaver Halana and Alena, Partners Immersturm Predator Maelstrom Pulse Ovika, Enigma Goliath Prime Speaker Zegana Wilt-Leaf Liege Dreadwing Scavenger Fiendish Panda Perforating Artist Wardens of the Cycle Empyrean Eagle Heroic Reinforcements Ruby, Daring Tracker Tatyova, Benthic Druid Cloudblazer Deadly Brew Dryad Militant Enigma Drake Garna, Bloodfist of Keld Mortify Savage Ventmaw Teach by Example Trygon Predator Consuming Aberration Boros Charm and Unflinching Courage are in traditional foil
While the output on the front alone is worth consideration, the boost given to noncreature sources when transformed is a boon in these decks
It's Temur (green/blue/red), which are some of the best colors for artifact decks
Cards like sagas, which are very similar graphically, use lore counters, but that's an entirely different matter