I imagine Temur will remain the best color combination, thanks to blues ease in achieving delirium, Snapcaster Mages synergy with [tippy title="Traverse the Ulvenwald" width="330" height="330"] [/tippy], and the immense relevance of a bullet Moon effect
For you, theyre amazing
You can have a good record with a Historic aggressive creature deck, or a mono-red burn deck in Timeless, because these decks dont rely that much on Timeless-only cards, but the competition will be fiercer, and Timeless is home to many broken combos as well
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The Menace ability becomes irrelevant because any number of creatures cant block the creature
See also: Master set guide, Binder layout planner How does Black Bolt differ from White Flare? Black Bolt and White Flare are companion sets with separate card pools that together cover the Unova region