(2017-07-14) If the cost of an ability or an additional cost of a spell requires putting counters on an artifact, creature, enchantment, or land, that cost cant be paid
You could tap down some lands to keep them from casting spells, I guess, but then they tap them in response and draw that mana for later anyway if they needed it
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Especially since the graveyard will already be playing a big role in this set with the Unearth mechanic
So, I want to say that you should just feel free to build decks and have fun
I feel like its in the wrong colors