Yeah, all of those MTG cards you mentioned would be over-powered in Elements.
As for people here confused about MTG, the cost to bring something out is usually much higher in MTG (we get tons of quanta in Elements, while MTG players think 6 mana is a lot). So fewer creatures out in MTG, creatures are more valuable, and very little spawns tons of creatures in MTG effectively like Boneyards/Graveyards in Elements.