Doubling Season (Showcase) (Japanese) [Foundations] Battlebond Prerelease Promos each of those permanents has

each of those permanents has "Whenever this permanent is dealt combat damage

we weren't aware of Chief Baral's motives for the project

Whenever another artifact with mana value 3 or greater enters the battlefield under your control

Set: Unfinity Type: Basic Land — Mountain Rarity: Common ({T}: Add {R}

Set: The List Type: Legendary Creature — Dragon God Rarity: Mythic Cost: {2}{W}{U}{B}{R}{G} Flying

Doubling Season (Showcase) (Japanese) [Foundations] Battlebond Prerelease Promos each of those permanents hasSet: Foundations Type: Enchantment Rarity: Mythic Cost: {4}{G} If an effect would create one or more tokens under your control, it creates twice that many of those tokens instead. If an effect would put one or more counters on a permanent you control, it puts twice that many of those counters on that permanent instead.