With the cards Urza, Lord Protector and The Mightstone and The Weakstone on the battlefield, a player can pay 7 generic mana at sorcery speed to meld both cards (by physically flipping them both) into one big boy: Urza, Planeswalker
Now, as I mentioned above, I personally didnt have to pick up the tab for these, but I note it because part of the point of this whole experiment is to see if these Magic products can be played standalone without costing an arm and a leg
The rest of the deck is filled with cards that either are creatures that modified themselves, have effects that let you modify creatures, or are spells that help modify your creatures
[15] You may only play 1 Energy card per turn unless another card says otherwise
A creature that didn't have first strike in the first combat damage step gains it after damage has been dealt while still in that step
The event was held with decorations and displays that celebrated both franchises