mtg untap land cards Retreat to Coralhelm earthbend 4 Awakening from Stronghold (1998). As

While the cost of dual lands make it hard to do on a budget, both blue-white and blue-black mill could go a long way to solving the deck's aggro issue by adding sweepers, hard removal, and / or lifegain to the sideboard

Thats with their popularity level, and the price of their packs

Not only does she help tap and untap the more vulnerable Merfolk, she also incentivizes the many Merfolk who want to attack, like Cold-Eyed SelkieCold-Eyed Selkie or Wanderwine ProphetsWanderwine Prophets

We'll learn about the tribal tradition of vampires in Commander, their customs, strengths and weaknesses, as well as the evolution of the archetype throughout the previously released sets

On top of all that, it has the extremely relevant ability of draining an opponent for every two life every time a creature dies

How slavish you are to the theme is up to your personal tastes and card availability