Doubling Seasons effect is often imitated but ironically, never duplicated by later doubling enchantments the open-ended wording which allows for instant Planeswalker ultimates will probably never appear on another spell
As much as the feature would be incredibly useful, its not possible to trade cards in MTG Arena
Drafting is a particular skill players must hone and refine over time
But in Standard, if you play with four Arid Mesas in any deck but Boros Bushwhacker (which itself is quite quick to the quick), you have to play with more than four Mountains-plus-Plains to reliably not get thrown off the Island math-wise, if you take my reality show meaning
Since Energy generation is random, there are a few ways for the game to be improved for multi-type and Dragon decks: Rather than generating Energy randomly, the game could have a system where the Energy Zone generates Energy types based on the number of Pokemon of each type present in the deck
But the second they meet with some players penchant for trying to break anything and everything they can in this game, it turns out that these mechanics can become insanely broken