DSK: Enduring Tenacity (Foil) D&D Accessories Whenever a creature or planeswalker

Whenever a creature or planeswalker an opponent controls is dealt excess damage

or you claim a route on the board by discarding cards that match the color of the route being claimed (with any set of cards allowing you to claim a gray route)

Cities that would normally produce two of one of those resources instead produce 1 resource and 1 of the corresponding commodity

and call on Eldegoss’s Blessing of Fluff for more Energy in the Rillaboom theme deck

DSK: Enduring Tenacity (Foil) D&D Accessories Whenever a creature or planeswalkerWhenever you gain life, target opponent loses that much life. When Enduring Tenacity dies, if it was a creature, return it to the battlefield under its owner's control. It's an enchantment. (It's not a creature.)