When this creature dies, incubate X, where X is its power
Being at six mana, youre really not saving much mana on a lot of creatures, making it feel a bit counterintuitive to play since you might as well just hard-cast whatever creature youre trying to bring back
Some try to collect Master Sets (a complete set of cards including all promos and reverse holos) and so it can be effective to open a couple of booster boxes and then trade any doubles for cards you need and purchase the rest as singles
Anyone who has seen this deck in action knows that if both of these creatures remain on the battlefield for even a single turn, the game usually ends due to each rune also functioning as a cantrip (a card that replaces itself)
Zekrom has two moves, the first is exactly the same as Reshiram's first move, it is called Outrage and for two colorless energy cards this move does 20 damage plus 10 more damage for each damage counter on Zekrom for a possibility of doing 140 damage in one move if Zekrom is only 10 damage away from fainting