I think its important to consider how well the decks play since these are intended as an introductory product
So thats cool but Terminate can only target creatures which is a bit sad
But, with Purphoros, God of the Forge, Impact Tremors, Rose Room Treasurer, etc., there are enough synergies that this is a reasonably reliable deck
That said, for just a dollar and a mana, you get an artifact that basically pushes your mana two turns ahead for the price of one
, , Sacrifice this land: Destroy each nonland permanent with mana value equal to the number of charge counters on this land
You need to gift your opponent a card in order to get the full benefit of the spell, but it does also come with added hexproof for the person casting it