Many players looked at the text of Contract with the Abyss and Earth Chant and came to the erroneous conclusion that they could use it to summon any monster they wanted as long as it had the proper attribute
Urza, Planeswalker Urza, Planeswalker is an absolute bomb, and thats because you need both Urza, Lord Protector and The Mightstone and Weakstone on board before you pay the seven mana to meld them
Lunala 46 Popplio Water 60 Water Gun (20) Solgaleo 47 Brionne Water 80 Wave Splash (30) Lunala 48 Primarina Water 140 Surf (60) Melodious Healing (Ability) Once during your turn, you may heal 30 damage from each of your water Pokmon
You could just include this card in your deck to counterbalance your opponent's strategy of using Pokemon with free or low retreat costs, by using Shoulder Throw it will prevent this
This is basically asking for a new Modern deck, which is a high bar, and maybe nothing will come of it, but the payoff is at least interesting
Once done, the Trade tutorial should start once you open the Social Hub area