Double Dragon Energy provides two Rainbow Energies while attached to a Dragon Pokmon while Crispin lets you attach two different Energies during your turn
Planets Adagia, Windswept Bastion Evendo, Waking Haven Kavaron, Memorial World Susur Secundi, Void Altar Uthros, Titanic Godcore Edge of Eternities introduced the station mechanic, and these are special lands that you can station with your creatures
You do have to have sufficient cards to pitch to it which not only means blue cards but also means cards you can afford to lose
When Chaos Orb lands, any cards in play that it touches are destroyed, as is Chaos Orb
With one of those things effectively soft banned in all but cEDH (Bracket 5), what did they decide to put forth as Game Changers