Whenever equipped creature dies, you may pay X life, where X is its power
If those who already know how to play Pokmon Trading Card Game wish to receive the cards, they will need to 1) bring a friend who is new to Pokmon Trading Card Game, 2) participate in the tutorial session themselves, and 3) help their friend to learn how to play in order to receive the cards
*Actual product may vary
If a MDFC is drawn (in this case Birgi, God of Storytelling, Reidane, God of the Worthy and Alrund, God of the Cosmos) then I am only given the option to cast non-creature sides of those cards.
These borderless scene versions can be found across draft, set, and collector booster packs, though regular versions of these cards are also still available (and can be seen in the gallery above)
Which set does the Mew ex 30C 158 card belong to