Dragon-type cards don't always need to be in a dragon-themed deck, as this Reshiram & Zekrom card would be quite at home in many dual-type Fire and Lighting decks
Specifically, if umbra armor's effect is applied, the enchanted creature does not become tapped and is not removed from combat as a result
It doesnt do a whole lot to help one of your creatures attack that couldnt already attack before, and I think thats the big thing you want Equipment to do for you, and +1/+1 isnt going to do it that often, which wont feel great for such a high Equip cost
Do you need a combination of energies
The reason this card is number 1 is because, any time you roll the wrong way, you can just say Nope! And try again
It has the potential to become a white token staple in EDH