Prioritizing dual lands that can enter untapped (like the "shock lands" or "fast lands") is one of the most significant upgrades you can make to any multi-color deck
Thus, the only way to really fight this deck is to remove it before it gets out of control
These "haymakers" can be inserted into many decks without much additional investment
Venat, Heart of Hydaelyn // Hydaelyn, the Mothercrystal This three-drop White transforming on-curve 3/3 has a cast trigger to draw for a legendary spell - not dorks like Serah above but them all, and on any turn, but just once
Rotation is going to happen every year, and we cant say for sure what the exact date is, since Wizards likes to mess with release schedules and dates
You might have to order through a website and ship something out, or actually drive somewhere, but it should at least be a straightforward process