Theres an argument for putting the elves in this slot solely for having better creature types, but the mana fixing that Birds offers is incredibly powerful
While not too powerful on its own, Toph's primary strength comes from letting you still get the benefits of your full mana pool by temporarily Earthbending artifacts instead, while doubling the mana potential of cards like Chromatic Lantern if activated in the correct order
Weve created this resource because, frankly, not all deck-building experiments end well, and sometimes its worth knowing where you started from so that you can retread your steps and start from solid ground
However, if you want a guideline for what kind of cards to look out for, it's good to refer to the Limited archetypes available
So whats the issue with the deck
If building an MTG deck seems like a complex task to you, help is at hand